What to Calculate
Live Result
Fill in both values to see your result.

How It Works

Everything runs in your browser — nothing is uploaded or stored on any server.

Step 01

Pick Calculation Type

Choose from 5 types: X% of Y, what %, change, increase, decrease.

Step 02

Enter Your Values

Type the two numbers — result appears instantly.

Step 03

See the Formula

The exact formula used is shown so you can verify it.

Step 04

Copy the Result

Save the result and formula to clipboard.

How It Helps You

Built for real work — no subscriptions, no watermarks, no surprises.

🛒

Discounts & Sales

Work out % off, VAT, tips, and commissions instantly.

📈

Growth & Change

Calculate % increase or decrease between two values.

📊

Ratios & Scores

Find what % one number is of another.

🔢

5 Types in 1

All common percentage calculations on one page.

Instant

Results update as you type — no button needed.

♾️

Forever Free

No sign-up, no limits.