Loading…
Loading…
Calculate simple interest from the principal, annual rate, and time in years, months, or days, with the working shown.
Also covers: Interest calculator · I = PRT calculator
Interest
$600.00
$5,000.00 × 4% × 3 years = $600.00; $5,600.00 in total.
Total amount
$5,600.00
Interest per year
$200.00
Interest per month
$16.67
Balance by year
| Year | Interest | Balance |
|---|---|---|
| 1 | $200.00 | $5,200.00 |
| 2 | $400.00 | $5,400.00 |
| 3 | $600.00 | $5,600.00 |
Time can be in years, months, or days; days are divided by 365.
The interest, the total amount, and the formula with your numbers, plus the balance year by year.
Simple interest is only charged or paid on the original principal, so it grows by the same amount each year. Compound interest is also earned on previous interest, so it grows faster over time.
Some car loans, short-term personal loans, bonds' coupon payments, and certificates of deposit that pay out interest instead of reinvesting it.
No. Everything is calculated in your browser, and nothing you enter is sent to a server. Only your chosen currency is remembered, in this browser.
Shopping
Work out a sale price and savings from a percentage off, stack an extra discount, or find the discount percentage or the original price.
Dining
Calculate the tip and total for a bill, split it between people, tip on the pre-tax amount, and round up the total or each share.
Sharing
Split a bill evenly, or share trip and group expenses: record who paid what and get the fewest payments to settle up.
Tax
Add VAT, GST, or sales tax to a net price, or take it out of a tax-inclusive price, at any rate.
Shopping
Compare the price per 100 g, per kg, per litre, per ounce, or per item across pack sizes to find the best value.
Formatting
See how an amount is written in different countries: symbols, separators, and decimals for 30 currencies and 14 locales, with the JavaScript code.