Free Tool • Used Worldwide • Instant Results
PercentageCalculator
Find X% of Y, what percent one number is of another, or the percentage increase/decrease between two values — instantly.
Percentage Calculator
Three of the most common percentage calculations, in one place.
Result
100
All three, at a glance
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Rajput Lalit & Associates handles GST, income tax, accounting and business compliance for individuals and businesses across India. The first consultation is free.
More Free Tools
This is one of our free online calculators used by people worldwide. See the full set — percentage, age, BMI, interest, discount and tip calculators, unit converters, plus India Income Tax, GST, HRA, EMI and SIP calculators — on our Free Tools page.
Need help with tax or compliance too?
We handle GST, income tax and accounting for individuals and businesses across India. The first consultation is free.
Book a Free ConsultationFrequently Asked Questions
How do I calculate a percentage of a number?
Multiply the number by the percentage and divide by 100. For example, 20% of 500 = (20 ÷ 100) × 500 = 100. This calculator does that instantly — just enter the percentage and the base number.
How do I find what percentage one number is of another?
Divide the part by the whole and multiply by 100. For example, 50 out of 200 = (50 ÷ 200) × 100 = 25%. Use the "X is what % of Y" mode above for this.
How is percentage increase or decrease calculated?
Percentage change = ((New Value − Old Value) ÷ Old Value) × 100. A positive result is an increase, a negative result is a decrease. This is the same formula used for tracking price changes, salary hikes, or year-on-year growth.
Can this calculator handle negative numbers?
Yes — enter negative values directly and the calculator will compute the result correctly, though percentage-of-a-negative-base results should be interpreted carefully depending on context.
Is this calculator free to use?
Yes, completely free with no sign-up or limits. It works for any currency or unit since percentages are unit-independent.
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