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Percentage Calculator

Calculate percentages instantly — marks, discounts, increase/decrease, and more.

📊 Calculate Percentage of Marks

📋 Percentage Required for Indian Competitive Exams

ExamMinimum % in GraduationNote
UPSC CSENo minimum %Any graduate eligible
SSC CGLNo minimum %Graduate in any stream
IBPS PONo minimum %Computer proficiency required
RBI Grade B60% (Gen), 50% (SC/ST)Strict cutoff
NEET-UG50% in PCB (Gen)45% for OBC; 40% SC/ST
JEE Advanced (IIT)75% in Class 12 (Gen)65% for SC/ST/PwD
CAT (IIM)50% in graduation (Gen)45% for SC/ST
NDAClass 12 passedPCM for Army Wing

How to Calculate Percentage — Formula & Examples

Percentage is one of the most commonly used mathematical concepts in daily life, from calculating exam marks to shopping discounts to salary hikes. The word "percent" literally means "per hundred," so any percentage is a fraction of 100.

Formula 1 — Marks Percentage: (Marks Obtained ÷ Total Marks) × 100 = Percentage. If you scored 432 out of 600, your percentage is 432/600 × 100 = 72%.

Formula 2 — Percentage Increase: When your score goes from 60 to 75, the increase = (75−60)/60 × 100 = 25% increase.

Formula 3 — Percentage Decrease: Price drops from ₹500 to ₹400 → (500−400)/500 × 100 = 20% decrease (discount).

For Indian Board Exams: CBSE marks are given subject-wise. Your aggregate percentage = Total marks in all subjects ÷ Total maximum marks × 100. Most colleges for admission use Best-of-5 or Best-of-4 subject formula, so check your college's specific eligibility rule.

Related tools: CGPA to Percentage Converter · Marks Calculator · Age Calculator

Frequently Asked Questions

How do I calculate the percentage of marks? +
Divide marks obtained by total marks and multiply by 100. For example, 450/500 × 100 = 90%. Use the "Marks %" tab above for quick calculation.
What is the formula for percentage increase? +
Percentage increase = (New Value − Old Value) / Old Value × 100. For example, salary goes from ₹25,000 to ₹30,000 → (30,000−25,000)/25,000 × 100 = 20% increase.
How to calculate percentage decrease? +
Percentage decrease = (Old Value − New Value) / Old Value × 100. This is used for discounts, price drops, and score reductions.
What percentage is X of Y? +
Divide X by Y and multiply by 100. For example, 45 out of 200: 45/200 × 100 = 22.5%. Use the "What % is X of Y?" tab above.
How to find X% of a number? +
Multiply the number by X and divide by 100. For example, 15% of 800 = 800 × 15 / 100 = 120. Use the "X% of Y" tab above.
Is this calculator free? +
Yes, completely free. No login, no app download, no hidden charges. Works on any browser and mobile device.
What is a good percentage in board exams? +
80% and above is considered very good in CBSE/ICSE board exams. Distinctions are typically awarded above 75%. For competitive exam eligibility, check the specific percentage requirement for your target exam in the table above.

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