Simple interest calculator

Interest is calculated only on the starting amount, not on interest already earned.

Simple interest calculator

%
years
You can write 0.5 for six months.

Result

100.00Interest

Amount + interest
1,100.00

Simple interest calculator

Inputs

Amount
1000
Rate per year
5
Length
2

How it is calculated

Interest = amount × rate ÷ 100 × years.

Result

Interest

100.00
Amount + interest
1,100.00

How it is calculated

  1. Interest = amount × rate ÷ 100 × years.

Example

1,000 at 5% for 2 years: 1,000 × 0.05 × 2 = 100.

Good to know

  • No tax or fees. Simple annual basis.

Frequently asked questions

What is this tool used for?

Interest is calculated only on the starting amount, not on interest already earned.

How is the result calculated?

Interest = amount × rate ÷ 100 × years.

What should I check before using the result?

No tax or fees. Simple annual basis.

Updated October 10, 2026

Indicative result. For an important decision, check with a professional.