Percentage Calculator
What is 18% of 250? What’s 30% off Rs. 4,999? Get instant, trustworthy answers — with the working shown.
What is the Percentage Calculator?
Percentages quietly run daily life: shop discounts, restaurant tips, sales tax, salary hikes, exam scores, loan interest. Doing them mentally is error-prone, and a basic phone calculator forces you to rebuild the formula every single time — easy to get wrong when money is involved.
The MuftTools Percentage Calculator handles the everyday cases directly: X percent of Y, what percentage X is of Y, percentage increase and decrease, and reverse percentages (finding the original price before a discount). Type your numbers and the answer appears instantly, with each step of the working displayed so you can see exactly how the result was reached. It is free, needs no sign-up, and keeps working offline after the first load.
How to use the Percentage Calculator
- Pick your calculation type — e.g. “% of”, “increase”, or “discount”.
- Enter your numbers in the highlighted fields.
- Read the instant result — no submit button needed.
- Check the step-by-step working shown underneath to verify it.
Key features
- Five everyday percentage calculations in one clean tool
- Live results that update as you type
- Shows the full working, not just the final answer
- Reverse-percentage mode for pre-discount originals
- Works offline after the first page load
- Free forever — no account, no ads in the way
Frequently asked questions
How do I calculate X% of Y?
Choose the “% of” mode and enter both numbers — for example, 18% of 250 gives 45, with the steps shown.
Can it work backwards from a discounted price?
Yes. Reverse-percentage mode finds the original value before a percent increase or decrease — handy for “was/now” sale labels.
Are the results accurate?
Yes — standard arithmetic, with every step displayed so you can double-check the math yourself.
Do I need an internet connection?
Only the first time the page loads. After that the calculator runs fully offline in your browser.