Percentage Calculator

X% of Y, what percent one number is of another, percentage change, and increasing or decreasing by a percentage.

Runs entirely in your browser. Nothing you type or paste is sent anywhere.

What is X% of Y?

What is Percentage% of Amount?

375

15 ÷ 100 × 2,500

Part is what percent of Whole?

75%

45 ÷ 60 × 100

From Starting value to New value

25%Increase

(100 − 80) ÷ 80 × 100

Increase Amount by Percentage%

1,320

1,200 × (1 + 10 ÷ 100) — a change of 120

Value now is the result of a Percentage% increase

Originally 1,000

1,150 ÷ (1 + 15 ÷ 100). Handy for working out a price before VAT or a sale.

If an interest rate goes from 5% to 6%, it rose by 1 percentage point — but by 20 percent of its old value.

Percentage points compare two percentages directly; percent compares the change with where you started.

Convert numbers to Roman numerals and back, with each step explained.

Length, weight, temperature, area (including bigha, katha and decimal), volume, speed, data and more.