Percentage Calculator
Use this free percentage calculator to find the percentage of any number — for example 20% of 1500 = 300 — or work it out in reverse, like what percent 45 is of 60. Get instant results for marks, discounts and sales.
Percentage Calculator
Find any percentage, discounts and marks percentage in seconds.
Result
Reverse: a number is what percent of another?
Result
How to use the Percentage Calculator
- Enter the percentage in the first box (for example 20) and the number in the second (for example 1500).
- Click “Calculate” — the answer appears instantly.
- For the reverse calculation, enter the number and the total in the section below.
What is a Percentage Calculator?
A percentage calculator works out percentages in seconds — what percent one number is of another, what a percentage of a number is, and how much a price rises or falls. Percentages are everywhere in daily life in Pakistan: exam marks, shop discounts, bank interest, sales tax and salary increases. With this tool you do not need to do long calculations on a calculator.
The formulas, explained simply
There are three calculations most people need. Finding a percentage of a number: 20% of 1,500 = 0.20 × 1,500 = 300. Finding what percent one number is of another: 45 out of 60 = (45 ÷ 60) × 100 = 75%. Discount price: 30% off Rs 2,000 means a discount of Rs 600, so you pay Rs 1,400. The tool does all three — the main calculator and the reverse calculator below it.
Example: marks and discounts
A student scores 450 marks out of 550. That is (450 ÷ 550) × 100 = 81.8% — a first division in most Pakistani boards. A shop offers 25% off a Rs 4,000 shirt: the discount is Rs 1,000 and the sale price is Rs 3,000. Both calculations are done in a second with this tool.
Tips and common mistakes
- Percentage points are not the same as percent. A rise from 10% to 15% is 5 percentage points, but a 50% increase. News and exam questions often test this.
- Check what the percentage is "of". 20% off, then 20% extra off, is not 40% off — the second discount applies to the already-reduced price.
- Round sensibly. Marks percentages are usually given to one decimal place (81.8%), while money is rounded to whole rupees.
- Do not confuse percent with a fraction. 75% is 3/4, 50% is 1/2 and 25% is 1/4 — knowing these by heart speeds up mental maths.
When to use a percentage calculator
Use it for exam results, shopping, salary and banking. A 10% salary increase on Rs 80,000 is Rs 8,000, taking the salary to Rs 88,000. A bank offering 15% annual profit on a Rs 100,000 deposit pays Rs 15,000 in a year. A shop advertising "50% off" on a Rs 3,000 item is selling it for Rs 1,500 — but always check the original price first, because some shops raise the price before the sale. Students use it for board exam percentages, where 80% and above is usually an A-1 grade in Pakistan. Shopkeepers use it for profit margins: buying at Rs 800 and selling at Rs 1,000 is a 25% profit. Whenever money or marks are involved, a quick percentage check stops costly mistakes.
Frequently asked questions
How do I calculate 20% of 1500?
Enter 20 in the first box and 1500 in the second, then click Calculate. The answer is 300.
How do I find what percent one number is of another?
Use the reverse section: enter the number and the total. For example 45 out of 60 is 75%.
Can I calculate marks percentage?
Yes — enter obtained marks and total marks in the reverse section to get your percentage instantly.
Is this calculator free?
Yes, completely free, no sign-up, and it works offline once the page is loaded.
What is the difference between percent and percentage points?
If a rate rises from 10% to 15%, that is a rise of 5 percentage points, but a 50% increase. The two are often confused in news and exam questions.
How do I calculate a discount price?
Find the discount amount first (for example 30% of Rs 2,000 = Rs 600), then subtract it from the price: Rs 2,000 − Rs 600 = Rs 1,400. This calculator does both steps for you.