Simple interest calculator

Calculate non-compounding interest over time.

Formula verified

Principal $Annual rate %Time years

Simple interest earned

$4,000.00Final amount: $14,000.00Calculated locally in your browser. Check the stated assumptions before making important decisions.

How this calculator works

Simple interest = principal × annual rate × time ÷ 100. Final amount = principal + interest.

Results are estimates based on the values entered. Confirm rates, prices, units and professional requirements that apply in your location.