.btc-calculator-container {
font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
max-width: 800px;
margin: 0 auto;
color: #333;
line-height: 1.6;
}
.calc-wrapper {
background: #fff;
padding: 30px;
border-radius: 12px;
box-shadow: 0 4px 20px rgba(0,0,0,0.1);
margin-bottom: 40px;
border-top: 5px solid #F7931A; /* Bitcoin Orange */
}
.calc-header {
text-align: center;
margin-bottom: 25px;
}
.calc-header h2 {
margin: 0;
color: #2c3e50;
font-size: 24px;
}
.input-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 20px;
}
@media (max-width: 600px) {
.input-grid {
grid-template-columns: 1fr;
}
}
.form-group {
margin-bottom: 15px;
}
.form-group label {
display: block;
margin-bottom: 8px;
font-weight: 600;
font-size: 14px;
color: #555;
}
.input-wrapper {
position: relative;
}
.input-wrapper input {
width: 100%;
padding: 12px 12px 12px 15px;
border: 1px solid #ddd;
border-radius: 6px;
font-size: 16px;
box-sizing: border-box;
transition: border-color 0.3s;
}
.input-wrapper input:focus {
border-color: #F7931A;
outline: none;
}
.input-suffix {
position: absolute;
right: 12px;
top: 50%;
transform: translateY(-50%);
color: #888;
font-size: 14px;
}
.btn-calc {
width: 100%;
padding: 15px;
background-color: #F7931A;
color: white;
border: none;
border-radius: 6px;
font-size: 18px;
font-weight: bold;
cursor: pointer;
transition: background-color 0.3s;
margin-top: 10px;
}
.btn-calc:hover {
background-color: #e08314;
}
.results-area {
margin-top: 30px;
background-color: #f8f9fa;
border-radius: 8px;
padding: 20px;
display: none; /* Hidden by default */
}
.results-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 20px;
}
.result-item {
background: white;
padding: 15px;
border-radius: 6px;
border: 1px solid #eee;
text-align: center;
}
.result-label {
font-size: 13px;
color: #777;
text-transform: uppercase;
letter-spacing: 0.5px;
margin-bottom: 5px;
}
.result-value {
font-size: 20px;
font-weight: 700;
color: #2c3e50;
}
.profit { color: #27ae60; }
.loss { color: #c0392b; }
/* Content Styling */
.content-section {
background: #fff;
padding: 30px;
border-radius: 12px;
box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.content-section h2 { color: #2c3e50; margin-top: 0; }
.content-section h3 { color: #F7931A; margin-top: 25px; font-size: 18px; }
.content-section p { margin-bottom: 15px; font-size: 16px; color: #444; }
.content-section ul { margin-bottom: 15px; padding-left: 20px; }
.content-section li { margin-bottom: 8px; }
.formula-box {
background-color: #f1f8ff;
padding: 15px;
border-left: 4px solid #F7931A;
font-family: monospace;
margin: 20px 0;
overflow-x: auto;
}
Understanding Your Bitcoin Rate of Return
Calculating the profitability of a Bitcoin investment involves more than just subtracting the buy price from the sell price. To get an accurate picture of your performance, you must account for trading fees, network costs, and the time duration of your investment.
How This Calculator Works
This tool performs several calculations to evaluate your crypto portfolio performance:
- Total Bitcoin Acquired: Calculates how many satoshis (units of BTC) you purchased based on your initial investment and entry price.
- Net Profit: The difference between your final value and initial investment, minus estimated trading fees (both entry and exit).
- ROI (Return on Investment): The total percentage growth of your capital.
- CAGR (Compound Annual Growth Rate): This metric smoothes out the volatility of Bitcoin to show you what your constant annual return would have been over the holding period. This is crucial for comparing Bitcoin against traditional assets like stocks or bonds.
The Formula for Bitcoin ROI
ROI (%) = [(Final Value – Initial Investment – Fees) / Initial Investment] × 100
For example, if you invested $10,000 when Bitcoin was $20,000, you acquired 0.5 BTC. If Bitcoin rises to $60,000:
- Your 0.5 BTC is now worth $30,000.
- Your gross profit is $20,000.
- If exchange fees were 1% total ($300 roughly), your net profit is $19,700.
- Your ROI is 197%.
Why CAGR Matters in Crypto
Bitcoin is known for extreme volatility. You might see a 300% gain in one year and a 50% drop the next. The Annualized Return (CAGR) helps you understand the "average" yearly growth rate. If you held Bitcoin for 4 years and made a 300% total return, your CAGR is approximately 41.4% per year, which is significantly higher than the S&P 500 average.
function calculateBitcoinROI() {
// Get Input Values
var investment = parseFloat(document.getElementById('btc_investment').value);
var entryPrice = parseFloat(document.getElementById('btc_entry_price').value);
var exitPrice = parseFloat(document.getElementById('btc_exit_price').value);
var years = parseFloat(document.getElementById('btc_years').value);
var feePercent = parseFloat(document.getElementById('btc_fees').value);
// Validation
if (isNaN(investment) || investment <= 0) {
alert("Please enter a valid Investment Amount.");
return;
}
if (isNaN(entryPrice) || entryPrice <= 0) {
alert("Please enter a valid Entry Price.");
return;
}
if (isNaN(exitPrice) || exitPrice < 0) {
alert("Please enter a valid Exit Price.");
return;
}
if (isNaN(years) || years 0 && netValue > 0) {
cagr = (Math.pow((netValue / investment), (1 / years)) – 1) * 100;
}
// Display Results
document.getElementById('btc_results').style.display = 'block';
// BTC Amount (up to 8 decimals for satoshis)
document.getElementById('res_btc_amount').innerHTML = btcAmount.toFixed(8) + " BTC";
// Final Value
document.getElementById('res_final_value').innerHTML = "$" + netValue.toLocaleString('en-US', {minimumFractionDigits: 2, maximumFractionDigits: 2});
// Net Profit
var profitEl = document.getElementById('res_net_profit');
profitEl.innerHTML = "$" + netProfit.toLocaleString('en-US', {minimumFractionDigits: 2, maximumFractionDigits: 2});
if (netProfit >= 0) {
profitEl.className = "result-value profit";
profitEl.innerHTML = "+$" + netProfit.toLocaleString('en-US', {minimumFractionDigits: 2, maximumFractionDigits: 2});
} else {
profitEl.className = "result-value loss";
}
// ROI
var roiEl = document.getElementById('res_roi');
roiEl.innerHTML = roiPercent.toFixed(2) + "%";
if (roiPercent >= 0) {
roiEl.className = "result-value profit";
roiEl.innerHTML = "+" + roiPercent.toFixed(2) + "%";
} else {
roiEl.className = "result-value loss";
}
// CAGR
var cagrEl = document.getElementById('res_cagr');
if (years > 0 && netValue > 0) {
cagrEl.innerHTML = cagr.toFixed(2) + "%";
if (cagr >= 0) cagrEl.className = "result-value profit";
else cagrEl.className = "result-value loss";
} else {
cagrEl.innerHTML = "N/A";
cagrEl.className = "result-value";
}
}