Finance / Interest
Simple interest calculator
P × R × T ÷ 100. Maturity = principal + interest.
Output currency
Results show in US Dollar. Default is USD. Pick any currency, or use the one for your location.
Simple interest
$2,400
Maturity
$12,400
SI = P × R × T ÷ 100. Compounding is not applied — use the compound-interest page for that.
FAQ
Questions, answered
Is my salary or loan data uploaded?Open
No. The maths runs in this tab. Close the page and the numbers are gone.
Are the tax rates official?Open
They follow commonly published slabs for the current year, labelled as estimates. Confirm on the government site before you file.
Related calculators