.exchange-calculator-wrapper {
max-width: 800px;
margin: 0 auto;
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
color: #333;
line-height: 1.6;
}
.calc-container {
background: #f9f9f9;
border: 1px solid #e0e0e0;
border-radius: 8px;
padding: 25px;
margin-bottom: 40px;
box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}
.calc-row {
display: flex;
flex-wrap: wrap;
gap: 20px;
margin-bottom: 20px;
}
.calc-col {
flex: 1;
min-width: 250px;
}
.calc-col label {
display: block;
font-weight: 600;
margin-bottom: 8px;
font-size: 14px;
color: #444;
}
.calc-col input {
width: 100%;
padding: 12px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 16px;
box-sizing: border-box;
}
.calc-col input:focus {
outline: none;
border-color: #0073aa;
box-shadow: 0 0 0 2px rgba(0,115,170,0.2);
}
.calc-btn {
background-color: #0073aa;
color: white;
border: none;
padding: 14px 24px;
font-size: 16px;
font-weight: bold;
border-radius: 4px;
cursor: pointer;
width: 100%;
transition: background 0.2s;
}
.calc-btn:hover {
background-color: #005177;
}
.result-box {
margin-top: 25px;
padding: 20px;
background: #fff;
border: 1px solid #ddd;
border-left: 4px solid #0073aa;
border-radius: 4px;
display: none;
}
.result-header {
font-size: 18px;
font-weight: bold;
margin-bottom: 15px;
border-bottom: 1px solid #eee;
padding-bottom: 10px;
}
.result-row {
display: flex;
justify-content: space-between;
margin-bottom: 10px;
font-size: 15px;
}
.result-row.final {
font-weight: bold;
font-size: 18px;
color: #0073aa;
margin-top: 15px;
border-top: 1px solid #eee;
padding-top: 10px;
}
.article-content h2 {
font-size: 24px;
margin-top: 30px;
color: #23282d;
}
.article-content h3 {
font-size: 20px;
margin-top: 25px;
color: #23282d;
}
.article-content p {
margin-bottom: 15px;
}
.article-content ul {
margin-bottom: 20px;
padding-left: 20px;
}
.article-content li {
margin-bottom: 8px;
}
.info-tip {
font-size: 12px;
color: #666;
margin-top: 4px;
}
function calculateExchange() {
var amount = parseFloat(document.getElementById('sourceAmount').value);
var rate = parseFloat(document.getElementById('exchangeRate').value);
var percentFee = parseFloat(document.getElementById('serviceFee').value);
var fixedFee = parseFloat(document.getElementById('fixedFee').value);
// Default fees to 0 if empty
if (isNaN(percentFee)) percentFee = 0;
if (isNaN(fixedFee)) fixedFee = 0;
var resultDiv = document.getElementById('resultOutput');
// Validation
if (isNaN(amount) || amount <= 0) {
resultDiv.style.display = 'block';
resultDiv.innerHTML = 'Please enter a valid amount to convert.';
return;
}
if (isNaN(rate) || rate <= 0) {
resultDiv.style.display = 'block';
resultDiv.innerHTML = 'Please enter a valid exchange rate.';
return;
}
// Calculation Logic
// 1. Convert initial amount using the rate
var grossConverted = amount * rate;
// 2. Calculate percentage fee (based on the converted amount usually, or the source.
// In travel/bank contexts, spread is hidden in rate, or % fee is taken from result.
// We will calculate % fee based on the converted gross amount for clarity).
var percentFeeAmount = grossConverted * (percentFee / 100);
// 3. Subtract fees
var totalFees = percentFeeAmount + fixedFee;
var netReceived = grossConverted – totalFees;
// 4. Calculate effective rate (Real cost per unit)
var effectiveRate = netReceived / amount;
// Formatting
var grossStr = grossConverted.toFixed(2);
var feeStr = totalFees.toFixed(2);
var netStr = netReceived.toFixed(2);
var effRateStr = effectiveRate.toFixed(4);
// Display Results
resultDiv.style.display = 'block';
resultDiv.innerHTML = `
Daily Currency Exchange Calculator
The amount of currency you hold.
1 Unit of your currency = X Units of target currency.
Percentage deducted for the transaction.
Flat fee charged per transaction (in target currency).
Conversion Results
Raw Conversion (Mid-Market):
${grossStr}
Total Fees & Commissions:
– ${feeStr}
Net Amount Received:
${netStr}
Effective Exchange Rate (After Fees):
1 Unit = ${effRateStr} Target
`;
}
Understanding Daily Exchange Rates
Calculating the value of your currency in a foreign market is essential for travelers, international businesses, and investors. The "Daily Exchange Rate" refers to the value of one currency for the purpose of conversion to another at a specific point in time. Because the foreign exchange market (Forex) operates 24 hours a day during the week, these rates fluctuate constantly based on global economic factors.
How the Calculation Works
While the basic math seems simple—multiplication of your amount by the rate—the actual amount you receive in your pocket is often different due to hidden costs. This calculator breaks down the process into three steps:
- Gross Conversion: This is your base amount multiplied by the quoted exchange rate (often the "mid-market" rate).
- Percentage Fees: Banks and exchange bureaus often charge a "spread" or a service percentage (e.g., 2% to 3%) on the transaction.
- Fixed Fees: Wire transfers or ATM withdrawals may incur a flat fee regardless of the amount exchanged.
What Affects the Daily Rate?
Several macroeconomic factors influence the numbers you see on the exchange board:
- Inflation Rates: Countries with lower inflation generally see an appreciation in the value of their currency.
- Interest Rates: Higher interest rates offer lenders in an economy a higher return relative to other countries, attracting foreign capital and causing the exchange rate to rise.
- Political Stability: Investors seek stable countries with strong economic performance. Turmoil can cause a currency to depreciate.
Real-World Example
Imagine you are converting 1,000 Units of Currency A to Currency B. The market rate is 1.50. However, the exchange service charges a 2% fee and a 5.00 flat service charge.
The Math:
- Base Conversion: 1,000 × 1.50 = 1,500.00
- Percentage Fee: 1,500 × 0.02 = 30.00
- Total Fees: 30.00 + 5.00 = 35.00
- Net Received: 1,500 – 35.00 = 1,465.00
In this scenario, your effective exchange rate is actually 1.465, not 1.50.