Percentage Calculator

Calculate percentages, percentage change, increases and decreases in seconds. Free to use online with no sign-up. Fast and mobile-friendly.

Use this calculator for discounts, grades, growth rates, proportions and everyday percentage questions.

Formula

Percentage of a value = percentage ÷ 100 × value. Percentage change = (new − original) ÷ original × 100.

Example

15% of 200 = 30.

Frequently asked questions

Is the percentage calculator free to use?: Yes. The tool is free to use and does not require an account.
Is my input stored?: For browser-based tools, your input stays on your device. The URL shortener is the exception because short links must be stored to redirect later.