Skymiles Miles Calculator

SkyMiles Calculator: Estimate Your Reward Potential :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ccc; –card-background: #fff; –shadow: 0 2px 5px rgba(0,0,0,.1); –border-radius: 8px; } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); margin: 0; padding: 0; line-height: 1.6; } .container { max-width: 1000px; margin: 20px auto; padding: 20px; background-color: var(–card-background); border-radius: var(–border-radius); box-shadow: var(–shadow); } h1, h2, h3 { color: var(–primary-color); text-align: center; } .calculator-wrapper { background-color: var(–card-background); padding: 30px; border-radius: var(–border-radius); box-shadow: var(–shadow); margin-bottom: 30px; } .input-group { margin-bottom: 20px; text-align: left; } .input-group label { display: block; margin-bottom: 8px; font-weight: bold; color: var(–primary-color); } .input-group input[type="number"], .input-group select { width: calc(100% – 22px); padding: 12px; border: 1px solid var(–border-color); border-radius: var(–border-radius); font-size: 1rem; margin-bottom: 5px; } .input-group .helper-text { font-size: 0.85em; color: #666; display: block; margin-top: 4px; } .error-message { color: red; font-size: 0.8em; margin-top: 5px; display: block; min-height: 1.2em; } .button-group { display: flex; justify-content: space-between; margin-top: 30px; gap: 10px; } .btn { padding: 12px 25px; border: none; border-radius: var(–border-radius); cursor: pointer; font-size: 1rem; font-weight: bold; transition: background-color 0.3s ease; text-align: center; flex: 1; } .btn-primary { background-color: var(–primary-color); color: white; } .btn-primary:hover { background-color: #003366; } .btn-secondary { background-color: #6c757d; color: white; } .btn-secondary:hover { background-color: #5a6268; } .btn-reset { background-color: #ffc107; color: #212529; } .btn-reset:hover { background-color: #e0a800; } .results-container { margin-top: 30px; padding: 25px; background-color: var(–primary-color); color: white; border-radius: var(–border-radius); box-shadow: inset 0 0 10px rgba(0,0,0,.2); } .results-container h3 { color: white; margin-top: 0; } .main-result { font-size: 2.5em; font-weight: bold; text-align: center; margin-bottom: 20px; padding: 15px; background-color: rgba(255,255,255,.2); border-radius: var(–border-radius); } .intermediate-results div { margin-bottom: 10px; font-size: 1.1em; } .intermediate-results span { font-weight: bold; margin-left: 5px; } .formula-explanation { font-size: 0.9em; margin-top: 15px; border-top: 1px solid rgba(255,255,255,.3); padding-top: 15px; } table { width: 100%; border-collapse: collapse; margin-top: 20px; margin-bottom: 20px; box-shadow: var(–shadow); } th, td { padding: 12px 15px; text-align: left; border-bottom: 1px solid var(–border-color); } th { background-color: var(–primary-color); color: white; font-weight: bold; } tbody tr:nth-child(even) { background-color: #e9ecef; } caption { font-size: 1.1em; font-weight: bold; color: var(–primary-color); margin-bottom: 10px; text-align: left; } canvas { width: 100% !important; height: 300px !important; background-color: white; border-radius: var(–border-radius); box-shadow: var(–shadow); } .chart-label { text-align: center; font-size: 0.9em; color: #666; margin-top: 10px; } .article-section { margin-top: 40px; padding-top: 30px; border-top: 1px solid #eee; } .article-section h2 { text-align: left; color: var(–primary-color); } .article-section h3 { text-align: left; color: var(–primary-color); margin-top: 25px; } .article-section p { margin-bottom: 15px; } .article-section ul, .article-section ol { margin-left: 20px; margin-bottom: 15px; } .article-section li { margin-bottom: 8px; } .faq-item { margin-bottom: 15px; padding-bottom: 10px; border-bottom: 1px dashed #ddd; } .faq-item:last-child { border-bottom: none; } .faq-question { font-weight: bold; color: var(–primary-color); cursor: pointer; margin-bottom: 5px; } .faq-answer { display: none; padding-left: 15px; font-size: 0.95em; color: #555; } .internal-links-list a { color: var(–primary-color); text-decoration: none; font-weight: bold; } .internal-links-list a:hover { text-decoration: underline; } .internal-links-list p { margin-bottom: 5px; } .highlighted-result { background-color: var(–success-color); color: white; padding: 20px; border-radius: var(–border-radius); margin-bottom: 20px; text-align: center; font-size: 1.5em; font-weight: bold; box-shadow: var(–shadow); }

SkyMiles Calculator: Estimate Your Reward Potential

Calculate potential SkyMiles earned and redeemed based on your travel and spending habits.

SkyMiles Earning & Redemption Calculator

Estimate the total miles you fly with Delta or partners each year.
On average, how much is one SkyMile worth when redeemed for domestic travel? (e.g., 0.012 means 1.2 cents)
On average, how much is one SkyMile worth when redeemed for international travel? (e.g., 0.015 means 1.5 cents)
Total spent annually on your Delta co-branded credit card, excluding bonus categories.
1 Mile per $1 (Standard) 1.5 Miles per $1 (Higher Tier Cards) 2 Miles per $1 (Specific Cards/Spend) How many miles do you earn per dollar spent on your card?
Spending in categories that earn bonus miles on your Delta card.
2 Miles per $1 (e.g., Dining, Groceries) 3 Miles per $1 (e.g., Delta Purchases) 4 Miles per $1 (e.g., Specific Card Offers) How many miles per dollar are earned in your card's bonus categories?

Your Estimated SkyMiles Performance

0 Miles
Estimated Miles Earned from Flights: 0 Miles
Estimated Miles Earned from Credit Card (Standard Spend): 0 Miles
Estimated Miles Earned from Credit Card (Bonus Spend): 0 Miles
Total Estimated Annual Miles Earned: 0 Miles
Estimated Value of Earned Miles (Domestic): 0
Estimated Value of Earned Miles (International): 0
Formula Explanation:

Total Annual Miles Earned = Miles Flown + (Annual Credit Card Spend * Card Miles Per Dollar) + (Annual Bonus Category Spend * Bonus Category Miles Per Dollar)

Estimated Value = Total Annual Miles Earned * Value per SkyMile (Domestic or International)

This calculator provides estimates; actual miles earned and redemption values may vary.

Annual Miles Earning Breakdown

Comparison of miles earned from flights vs. credit card spending.

SkyMiles Redemption Value Comparison

Redemption Type Estimated Value per Mile Miles Required for a Sample Round Trip (Estimate) Estimated Cost in Miles
Illustrative values; actual redemption costs fluctuate significantly.

What is a SkyMiles Calculator?

A SkyMiles calculator is an online tool designed to help Delta Air Lines frequent flyers estimate the number of SkyMiles they can earn and potentially redeem based on various factors. These factors typically include miles flown, spending on Delta co-branded credit cards, and the estimated value of SkyMiles for different types of redemptions. Understanding how SkyMiles accumulate and their approximate worth empowers travelers to make informed decisions about their loyalty program engagement and maximize their travel rewards. It's a crucial tool for anyone serious about leveraging the Delta SkyMiles program for free flights, upgrades, and other benefits.

Who should use a SkyMiles calculator?

  • Frequent Delta flyers who want to track their mileage balance and project future rewards.
  • Individuals considering applying for a Delta SkyMiles American Express card to understand the earning potential.
  • Travelers aiming to achieve specific redemption goals, like a free international trip or an upgrade.
  • Anyone seeking to compare the value of SkyMiles against cash fares or other loyalty programs.

Common Misconceptions about SkyMiles:

  • Myth: All SkyMiles are worth the same. Reality: The value of a SkyMile can fluctuate dramatically based on the route, timing, and type of redemption (e.g., domestic vs. international, economy vs. first class).
  • Myth: You can always redeem miles for a fixed value. Reality: Delta uses dynamic pricing for award tickets, meaning the number of miles needed changes based on demand and cash prices.
  • Myth: Earning miles is only about flying. Reality: A significant portion of SkyMiles can be earned through Delta SkyMiles American Express cards, especially with strategic spending in bonus categories.

SkyMiles Calculator Formula and Mathematical Explanation

The core of a SkyMiles calculator revolves around two main calculations: estimating miles earned and estimating the value of those earned miles. These calculations are based on user-provided inputs that reflect their flying habits and credit card usage.

Miles Earned Calculation

The total miles earned in a year is a sum of miles from different sources:

Formula:

Total Annual Miles Earned = Miles Flown + (Annual Credit Card Spend * Card Miles Per Dollar) + (Annual Bonus Category Spend * Bonus Category Miles Per Dollar)

Variable Explanations:

  • Miles Flown: The total number of miles a traveler physically flies on Delta or its partners within a year. This forms a baseline earning, although often Delta SkyMiles members earn based on the fare class and Medallion status, not just distance. For simplicity, many calculators use flown miles as a proxy or an additional earning component.
  • Annual Credit Card Spend: The total amount spent on a Delta SkyMiles co-branded American Express card throughout the year on non-bonus category purchases.
  • Card Miles Per Dollar: The rate at which miles are earned for every dollar spent on the credit card in standard (non-bonus) categories. This varies by card.
  • Annual Bonus Category Spend: The total amount spent on the Delta co-branded card within specific bonus categories (e.g., dining, groceries, Delta purchases) as defined by the card's rewards structure.
  • Bonus Category Miles Per Dollar: The higher rate at which miles are earned for every dollar spent on the credit card in these bonus categories.

Estimated Value Calculation

Once total miles earned are calculated, their potential monetary value can be estimated. This requires estimating the average value of a SkyMile, which is notoriously variable.

Formula:

Estimated Value = Total Annual Miles Earned * Value per SkyMile

Variable Explanations:

  • Value per SkyMile (Domestic Redeemed): The estimated average cash value of one SkyMile when redeemed for domestic Delta flights. This is often calculated by dividing the cash price of a typical award ticket by the miles required for it. Values commonly range from 1.0 to 1.7 cents per mile.
  • Value per SkyMile (International Redeemed): The estimated average cash value of one SkyMile when redeemed for international Delta flights. These redemptions often offer higher perceived value due to higher cash fares. Values can range from 1.2 to 2.0+ cents per mile.

Variables Table:

Key Variables in SkyMiles Calculation
Variable Meaning Unit Typical Range
Annual Miles Flown Total miles flown on Delta/partners annually Miles 0 – 100,000+
Value per SkyMile (Domestic) Average cash value of a SkyMile for domestic awards USD per Mile (cents) $0.010 – $0.017 (1.0 – 1.7 cents)
Value per SkyMile (International) Average cash value of a SkyMile for international awards USD per Mile (cents) $0.012 – $0.020+ (1.2 – 2.0+ cents)
Annual Credit Card Spend (Standard) Non-bonus spending on Delta card USD $0 – $50,000+
Card Miles Per Dollar (Standard) Miles earned per $1 on standard spend Miles/$ 1.0 – 1.5
Annual Credit Card Spend (Bonus) Bonus category spending on Delta card USD $0 – $30,000+
Bonus Category Miles Per Dollar Miles earned per $1 on bonus spend Miles/$ 2.0 – 4.0+

Practical Examples (Real-World Use Cases)

Example 1: The Frequent Business Traveler

Meet Sarah, a consultant who flies extensively for work and has a Delta SkyMiles American Express Platinum card.

  • Inputs:
  • Annual Miles Flown: 60,000 miles
  • Estimated Value per SkyMile (Domestic): $0.013 (1.3 cents)
  • Estimated Value per SkyMile (International): $0.016 (1.6 cents)
  • Annual Delta SkyMiles Credit Card Spend (Non-category): $15,000
  • Card Miles Per Dollar (Standard): 1.5 miles/$
  • Annual Spending in Bonus Categories (Dining, Groceries): $12,000
  • Bonus Category Miles Per Dollar: 2 miles/$

Calculation Breakdown:

  • Flight Miles Earned: 60,000 (Assuming 1 mile per flown mile, simplified)
  • Card Miles Earned (Standard Spend): $15,000 * 1.5 = 22,500 miles
  • Card Miles Earned (Bonus Spend): $12,000 * 2 = 24,000 miles
  • Total Estimated Annual Miles Earned: 60,000 + 22,500 + 24,000 = 106,500 miles
  • Estimated Value (Domestic): 106,500 miles * $0.013/mile = $1,384.50
  • Estimated Value (International): 106,500 miles * $0.016/mile = $1,704.00

Interpretation: Sarah earns a substantial number of SkyMiles annually, primarily driven by her credit card spending, especially in bonus categories. The estimated value suggests she can save over $1,700 on international travel if she redeems strategically.

Example 2: The Occasional Traveler Maximizing Card Perks

Meet Mark, who flies only a few times a year but uses his Delta SkyMiles Gold card for most everyday purchases.

  • Inputs:
  • Annual Miles Flown: 5,000 miles
  • Estimated Value per SkyMile (Domestic): $0.012 (1.2 cents)
  • Estimated Value per SkyMile (International): $0.015 (1.5 cents)
  • Annual Delta SkyMiles Credit Card Spend (Non-category): $25,000
  • Card Miles Per Dollar (Standard): 1 mile/$
  • Annual Spending in Bonus Categories (Limited): $3,000
  • Bonus Category Miles Per Dollar: 2 miles/$

Calculation Breakdown:

  • Flight Miles Earned: 5,000 miles
  • Card Miles Earned (Standard Spend): $25,000 * 1 = 25,000 miles
  • Card Miles Earned (Bonus Spend): $3,000 * 2 = 6,000 miles
  • Total Estimated Annual Miles Earned: 5,000 + 25,000 + 6,000 = 36,000 miles
  • Estimated Value (Domestic): 36,000 miles * $0.012/mile = $432.00
  • Estimated Value (International): 36,000 miles * $0.015/mile = $540.00

Interpretation: Mark's SkyMiles earnings are almost entirely driven by his credit card spending. Even with limited flying, his consistent card usage allows him to accumulate enough miles for a domestic award ticket or contribute significantly towards an international one each year.

How to Use This SkyMiles Calculator

Our SkyMiles calculator is designed for simplicity and ease of use. Follow these steps to get your personalized SkyMiles estimates:

  1. Input Annual Miles Flown: Enter the approximate total number of miles you anticipate flying with Delta or its partners in a year. This serves as a baseline for flight-related earnings (though actual mileage earning can depend on fare class and status).
  2. Set Estimated SkyMile Value: Input your realistic estimations for the value of a SkyMile when redeemed. Use the provided ranges as a guide (Domestic: typically 1.0-1.7 cents; International: typically 1.2-2.0+ cents). These are crucial for the financial valuation of your miles.
  3. Enter Annual Credit Card Spend:
    • Specify your total annual spending on your Delta SkyMiles American Express card for general purchases (non-bonus categories).
    • Select the corresponding Card Miles Per Dollar rate for these purchases from the dropdown.
    • Specify your total annual spending within the bonus categories offered by your card (e.g., dining, groceries, Delta purchases).
    • Select the corresponding Bonus Category Miles Per Dollar rate for these specific purchases.
  4. Calculate: Click the "Calculate SkyMiles" button. The calculator will instantly process your inputs.

How to Read Results:

  • Main Result (Highlighted): This shows your Total Estimated Annual Miles Earned, providing a clear target number.
  • Intermediate Values: These break down the sources of your miles (flights, standard card spend, bonus card spend) and provide estimated monetary values for your earned miles based on your input values per mile for both domestic and international redemptions.
  • Chart: Visualizes the breakdown of your annual miles earnings, showing the proportion from flights versus credit card spending.
  • Table: Offers a comparative view of potential redemption values, illustrating the estimated cost in miles for hypothetical award flights.

Decision-Making Guidance:

  • Identify Earning Opportunities: See which activities contribute most to your SkyMiles balance. If credit card spending heavily outweighs flying, consider strategies to maximize card bonuses.
  • Assess Redemption Potential: Use the estimated value figures to decide if redeeming miles is more beneficial than paying cash, especially when comparing domestic vs. international travel.
  • Set Realistic Goals: The total miles earned figure helps you project how long it will take to save up for a specific award flight.
  • Optimize Credit Card Usage: Understand which spending categories yield the most miles and adjust your spending habits accordingly.

Key Factors That Affect SkyMiles Results

Several factors significantly influence the number of SkyMiles you earn and their ultimate value. Understanding these is key to effectively managing your Delta loyalty account.

  1. Credit Card Type and Tier: Delta offers various co-branded American Express cards (e.g., Gold, Platinum, Reserve). Each card has different earning rates for standard and bonus spending, annual fees, and bonus categories. Higher-tier cards often offer better earning potential but come with higher fees. This directly impacts your miles earned per dollar.
  2. Spending Habits: Where and how you spend money is paramount. Using your Delta card for everyday purchases versus specialty bonus categories (like dining, groceries, or Delta purchases) dramatically alters your rate of SkyMiles accumulation. Maximizing bonus categories is crucial for efficient earning.
  3. Flying Frequency and Fare Class: While this calculator simplifies flight earning to miles flown, in reality, Delta SkyMiles members earn miles based on the fare amount (not distance flown for most members) and Medallion status. Higher fare classes and higher Medallion tiers (Silver, Gold, Platinum, Diamond) result in significant mileage bonuses on flights.
  4. Redemption Value Fluctuations: The "value" of a SkyMile is not fixed. It depends heavily on demand for specific routes and dates, airline capacity, and whether you're booking domestic or international flights, economy or premium cabins. Using the calculator with different valuation inputs can provide a range of potential savings. This is why setting realistic estimated value per SkyMile is critical.
  5. Award Availability and Dynamic Pricing: Delta uses a dynamic pricing model for award tickets. This means the number of miles required for a flight can change daily, similar to cash ticket prices. Popular routes or peak travel times often require more miles, impacting the perceived value and feasibility of a redemption.
  6. Annual Fees and Card Perks: The annual fees associated with Delta SkyMiles cards must be factored into the net value. While perks like free checked bags, priority boarding, or lounge access (on Reserve cards) can offer significant value, they need to be weighed against the fee and the miles earned. These indirect benefits aren't always captured in a simple miles calculator but are vital for overall loyalty program assessment.
  7. Promotional Offers and Bonuses: Delta and American Express frequently run limited-time offers, such as sign-up bonuses for new cardholders or increased earning rates on specific spending categories. These can temporarily inflate your SkyMiles balance significantly and should be taken advantage of when available.
  8. Medallion Status Benefits: Higher Medallion tiers grant bonus miles on flights (e.g., 40% bonus for Platinum, 60% for Diamond) and other perks like upgrades, which indirectly enhance the value proposition of the SkyMiles program, even if not directly calculated as miles earned.

Frequently Asked Questions (FAQ)

How is the value of a SkyMile determined in this calculator?
The calculator uses user-provided estimates for the value per SkyMile. These estimates are typically derived by dividing the cash cost of a desired award flight by the number of miles required for it. Common ranges are 1.0-1.7 cents for domestic and 1.2-2.0+ cents for international flights, but actual value varies greatly.
Does the calculator account for bonus miles earned from Medallion status?
This specific calculator simplifies flight earnings. It primarily focuses on miles flown as a baseline and highlights credit card earnings. For a precise calculation including Medallion bonuses, you would need to manually add those bonus percentages to the flight miles earned or consult Delta's official mileage earning tables.
What if I have multiple Delta SkyMiles credit cards?
If you hold multiple cards, you'll need to calculate the earnings from each card separately based on its specific bonus categories and earning rates. Then, sum up the totals from all cards to input into the calculator for an overall picture.
Are SkyTeam partner earnings included?
This calculator focuses on earnings directly through Delta flights and Delta co-branded credit cards. While SkyMiles can be earned on flights with SkyTeam partners, the earning rates vary significantly by partner and fare class. Calculating these accurately requires checking each partner's specific mileage accrual policy with Delta.
Can I use this calculator to estimate miles needed for an upgrade?
This calculator primarily estimates miles earned and their general value. Calculating the miles needed for an upgrade involves different award charts and availability, which are dynamic. While the estimated value per mile can give you a rough idea of the cost, it's not a direct upgrade calculator.
What happens if I redeem my miles for something other than flights (e.g., merchandise, gift cards)?
Redeeming SkyMiles for non-flight options like merchandise or gift cards typically results in a much lower value per mile compared to flight redemptions. This calculator's value estimations are based on achieving better value through travel redemptions.
How often should I update my SkyMiles value estimate?
It's advisable to reassess your estimated SkyMile value periodically, perhaps annually or before planning a significant redemption. Flight prices and award availability change constantly, so your perceived value per mile might need adjustment to reflect current market conditions.
Does spending on general Delta purchases (like onboard Wi-Fi) count towards bonus categories?
It depends on the specific terms of your Delta SkyMiles American Express card. Some cards offer bonus miles on direct Delta purchases (e.g., flights booked directly with Delta, vacation packages), which might include onboard services. Always check your card's official rewards program details for clarity on which purchases qualify for bonus miles.

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Math.round(100 / (domesticValue * 100)) : 0; var internationalMilesRequired = totalMilesEarned > 0 ? Math.round(100 / (internationalValue * 100)) : 0; // Ensure realistic minimums for illustrative purposes if (domesticMilesRequired < 5000) domesticMilesRequired = 5000; if (internationalMilesRequired < 10000) internationalMilesRequired = 10000; var rowDomestic = document.createElement('tr'); rowDomestic.innerHTML = 'Domestic Flight (Illustrative)' + '$' + domesticValue.toFixed(3) + '' + '~' + domesticMilesRequired.toLocaleString() + ' Miles' + '$' + (domesticMilesRequired * domesticValue).toFixed(2) + ''; tableBody.appendChild(rowDomestic); var rowInternational = document.createElement('tr'); rowInternational.innerHTML = 'International Flight (Illustrative)' + '$' + internationalValue.toFixed(3) + '' + '~' + internationalMilesRequired.toLocaleString() + ' Miles' + '$' + (internationalMilesRequired * internationalValue).toFixed(2) + ''; tableBody.appendChild(rowInternational); } function calculateSkyMiles() { var milesFlown = parseFloat(document.getElementById('annualMilesFlown').value); var domesticPerMileValue = parseFloat(document.getElementById('domesticPerMileValue').value); var internationalPerMileValue = parseFloat(document.getElementById('internationalPerMileValue').value); var annualCreditCardSpend = parseFloat(document.getElementById('annualCreditCardSpend').value); var cardMilesPerDollar = parseFloat(document.getElementById('cardMilesPerDollar').value); var annualSpendingCategorySpend = parseFloat(document.getElementById('annualSpendingCategorySpend').value); var bonusCategoryMilesPerDollar = parseFloat(document.getElementById('bonusCategoryMilesPerDollar').value); var valid = true; valid = validateInput('annualMilesFlown', 'annualMilesFlownError') && valid; valid = validateInput('domesticPerMileValue', 'domesticPerMileValueError', 0.001) && valid; valid = validateInput('internationalPerMileValue', 'internationalPerMileValueError', 0.001) && valid; valid = validateInput('annualCreditCardSpend', 'annualCreditCardSpendError') && valid; valid = validateInput('annualSpendingCategorySpend', 'annualSpendingCategorySpendError') && valid; if (!valid) { document.getElementById('resultsContainer').style.display = 'none'; document.getElementById('chartContainer').style.display = 'none'; document.getElementById('tableContainer').style.display = 'none'; return; } var flightMilesEarned = milesFlown; // Simplified calculation var cardMilesEarnedStandard = annualCreditCardSpend * cardMilesPerDollar; var cardMilesEarnedBonus = annualSpendingCategorySpend * bonusCategoryMilesPerDollar; var totalAnnualMilesEarned = flightMilesEarned + cardMilesEarnedStandard + cardMilesEarnedBonus; var estimatedValueDomestic = totalAnnualMilesEarned * domesticPerMileValue; var estimatedValueInternational = totalAnnualMilesEarned * internationalPerMileValue; document.getElementById('flightMilesEarned').textContent = flightMilesEarned.toLocaleString(); document.getElementById('cardMilesEarnedStandard').textContent = cardMilesEarnedStandard.toLocaleString(undefined, { maximumFractionDigits: 0 }); document.getElementById('cardMilesEarnedBonus').textContent = cardMilesEarnedBonus.toLocaleString(undefined, { maximumFractionDigits: 0 }); document.getElementById('totalAnnualMilesEarned').textContent = totalAnnualMilesEarned.toLocaleString(); document.getElementById('estimatedValueDomestic').textContent = "$" + estimatedValueDomestic.toFixed(2); document.getElementById('estimatedValueInternational').textContent = "$" + estimatedValueInternational.toFixed(2); document.getElementById('mainResult').textContent = totalAnnualMilesEarned.toLocaleString() + " Miles"; document.getElementById('resultsContainer').style.display = 'block'; updateChart(flightMilesEarned, cardMilesEarnedStandard, cardMilesEarnedBonus); document.getElementById('chartContainer').style.display = 'block'; updateRedemptionTable(domesticPerMileValue, internationalPerMileValue, totalAnnualMilesEarned); document.getElementById('tableContainer').style.display = 'block'; } function copyResults() { var mainResult = document.getElementById('mainResult').textContent; var flightMiles = document.getElementById('flightMilesEarned').textContent; var cardStandard = document.getElementById('cardMilesEarnedStandard').textContent; var cardBonus = document.getElementById('cardMilesEarnedBonus').textContent; var totalMiles = document.getElementById('totalAnnualMilesEarned').textContent; var valueDomestic = document.getElementById('estimatedValueDomestic').textContent; var valueInternational = document.getElementById('estimatedValueInternational').textContent; var assumptions = "Assumptions:\n"; assumptions += "- Annual Miles Flown: " + document.getElementById('annualMilesFlown').value + " miles\n"; assumptions += "- Est. Domestic Mile Value: $" + parseFloat(document.getElementById('domesticPerMileValue').value).toFixed(3) + "\n"; assumptions += "- Est. International Mile Value: $" + parseFloat(document.getElementById('internationalPerMileValue').value).toFixed(3) + "\n"; assumptions += "- Annual Card Spend (Std): $" + document.getElementById('annualCreditCardSpend').value + " @ " + document.getElementById('cardMilesPerDollar').value + " miles/$\n"; assumptions += "- Annual Card Spend (Bonus): $" + document.getElementById('annualSpendingCategorySpend').value + " @ " + document.getElementById('bonusCategoryMilesPerDollar').value + " miles/$\n"; var textToCopy = "— SkyMiles Calculator Results —\n\n"; textToCopy += "Main Result: " + mainResult + "\n"; textToCopy += "Estimated Miles Earned from Flights: " + flightMiles + "\n"; textToCopy += "Estimated Miles Earned from Credit Card (Standard Spend): " + cardStandard + "\n"; textToCopy += "Estimated Miles Earned from Credit Card (Bonus Spend): " + cardBonus + "\n"; textToCopy += "Total Estimated Annual Miles Earned: " + totalMiles + "\n"; textToCopy += "Estimated Value of Earned Miles (Domestic): " + valueDomestic + "\n"; textToCopy += "Estimated Value of Earned Miles (International): " + valueInternational + "\n\n"; textToCopy += assumptions; navigator.clipboard.writeText(textToCopy).then(function() { alert('Results copied to clipboard!'); }, function(err) { console.error('Could not copy text: ', err); alert('Failed to copy results. Please copy manually.'); }); } function resetCalculator() { document.getElementById('annualMilesFlown').value = 15000; document.getElementById('domesticPerMileValue').value = 0.012; document.getElementById('internationalPerMileValue').value = 0.015; document.getElementById('annualCreditCardSpend').value = 20000; document.getElementById('cardMilesPerDollar').value = 1; document.getElementById('annualSpendingCategorySpend').value = 10000; document.getElementById('bonusCategoryMilesPerDollar').value = 2; // Clear errors document.getElementById('annualMilesFlownError').textContent = ""; document.getElementById('domesticPerMileValueError').textContent = ""; document.getElementById('internationalPerMileValueError').textContent = ""; document.getElementById('annualCreditCardSpendError').textContent = ""; document.getElementById('annualSpendingCategorySpendError').textContent = ""; // Clear results and hide containers document.getElementById('flightMilesEarned').textContent = '0'; document.getElementById('cardMilesEarnedStandard').textContent = '0'; document.getElementById('cardMilesEarnedBonus').textContent = '0'; document.getElementById('totalAnnualMilesEarned').textContent = '0'; document.getElementById('estimatedValueDomestic').textContent = '$0.00'; document.getElementById('estimatedValueInternational').textContent = '$0.00'; document.getElementById('mainResult').textContent = '0 Miles'; document.getElementById('resultsContainer').style.display = 'none'; document.getElementById('chartContainer').style.display = 'none'; document.getElementById('tableContainer').style.display = 'none'; if (window.myMilesChart) { window.myMilesChart.destroy(); } } // Initialize FAQ toggles document.addEventListener('DOMContentLoaded', function() { var faqQuestions = document.querySelectorAll('.faq-question'); faqQuestions.forEach(function(question) { question.addEventListener('click', function() { var answer = this.nextElementSibling; if (answer.style.display === 'block') { answer.style.display = 'none'; } else { answer.style.display = 'block'; } }); }); // Initial calculation on load if values are present if (document.getElementById('annualMilesFlown').value) { calculateSkyMiles(); } });

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