🎓 Student & Utility Tools

Percentage Calculator — Marks, Discount, Increase & Decrease

परसेंटेज कैलकुलेटर — अंक, छूट, बढ़ोतरी और कमी

Calculate percentage of marks, find discount price, calculate percentage increase or decrease, and more. 6 types of percentage calculations. Works offline instantly.

✅ 100% offline — pure math, no server
% What is X% of Y?
Find the value that is a given percentage of a number.
किसी संख्या का X प्रतिशत कितना होता है?
Example: What is 18% of ₹5,000? → ₹900
What is % of ?
Answer • उत्तर
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🔢 X is what % of Y?
Find what percentage one number is of another.
X, Y का कितना प्रतिशत है?
Example: 450 is what % of 600? → 75%
is what % of ?
Answer • उत्तर
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📈 Percentage Increase / Decrease
Find by what percentage a value has changed.
कितने प्रतिशत बढ़ा या घटा?
Example: Price went from ₹800 to ₹1,000 → 25% increase
From पहले → To बाद में
Change • बदलाव
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🏷️ Discount & Sale Price Calculator
Find the final price after discount, or find discount percentage.
छूट के बाद कितने में मिलेगा?
Original Price & Discount %
MRP / Price कीमत ₹ − % off
You Pay • आप देंगे
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Find Discount % from two prices
Original असली ₹ Sale price ₹
Discount % • छूट
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📚 Marks Percentage Calculator
Calculate your percentage from marks obtained in multiple subjects.
सभी विषयों के अंकों से प्रतिशत निकालो
Subject • विषय Marks Obtained प्राप्तांक Maximum Marks पूर्णांक %
TOTAL 0 0 0%
0%
Overall Percentage • कुल प्रतिशत
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F
<35%
D
35-49%
C
50-59%
B
60-74%
A
75-89%
A+
90%+
0
Marks Obtained
0
Total Marks
—
Highest Subject
🔄 Reverse Percentage
Find the original number before a percentage was applied.
प्रतिशत लगाने से पहले की असली संख्या निकालो
Example: After 20% increase, price is ₹1,200. What was original? → ₹1,000
After % बाद में is % more than original
Change "more" to "less" for decrease:
Original Value • असली संख्या
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⚡ Quick Calculations • तुरंत हिसाब
GST Calculator GST
Amount ₹
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Tip Calculator टिप
Bill ₹ %
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Salary Hike वेतन वृद्धि
Current ₹ %
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Profit / Loss % मुनाफा / नुकसान
Cost ₹ Sell ₹
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Interest Amount ब्याज राशि
₹ %/yr
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Body Fat % (BMI helper)
Obtained of
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Percentage Formulas — All Types

Basic Percentage — X% of Y

Result = (X ÷ 100) × Y Example: 18% of 5000 = (18 ÷ 100) × 5000 = 900

What Percentage — X is what % of Y

Percentage = (X ÷ Y) × 100 Example: 450 is what % of 600 = (450 ÷ 600) × 100 = 75%

Percentage Increase

% Increase = ((New − Old) ÷ Old) × 100 Example: 800 to 1000 = ((1000 − 800) ÷ 800) × 100 = 25% increase

Percentage Decrease

% Decrease = ((Old − New) ÷ Old) × 100 Example: 1000 to 700 = ((1000 − 700) ÷ 1000) × 100 = 30% decrease

Discount Price

Sale Price = Original Price × (1 − Discount% ÷ 100) Example: ₹1000 at 20% off = 1000 × (1 − 0.20) = ₹800 You save = ₹1000 − ₹800 = ₹200

Marks Percentage

Percentage = (Total Marks Obtained ÷ Total Maximum Marks) × 100 Example: 450 out of 600 = (450 ÷ 600) × 100 = 75%

Grading System Used in India

90% and above: A+ / O (Outstanding) — Distinction

75% – 89%: A (Excellent) — First Class with Distinction

60% – 74%: B (Good) — First Class

50% – 59%: C (Average) — Second Class

35% – 49%: D (Below Average) — Pass

Below 35%: F (Fail)

Frequently Asked Questions

How to calculate percentage of marks in India? +
Add up all marks obtained across all subjects. Add up all maximum marks. Divide total obtained by total maximum and multiply by 100. Example: You got 450 marks out of 600 total. Percentage = (450 ÷ 600) × 100 = 75%. Use the Marks % tab above to calculate this automatically for all your subjects.
How to calculate GST percentage? +
To add GST: Final price = Original price × (1 + GST rate ÷ 100). For 18% GST on ₹1000: Final = 1000 × 1.18 = ₹1,180. GST amount = ₹180. To remove GST from a price that already includes it: Original = Price ÷ (1 + GST rate ÷ 100). For 18% GST inclusive ₹1,180: Original = 1180 ÷ 1.18 = ₹1,000.
How to calculate percentage increase in salary? +
Use the % Change tab or the Salary Hike quick calculator. Formula: Hike amount = Current salary × Hike % ÷ 100. New salary = Current salary + Hike amount. Example: ₹50,000 salary with 15% hike. Hike = 50,000 × 15 ÷ 100 = ₹7,500. New salary = ₹57,500.
How to find original price after discount? +
Use the Reverse % tab. If you know the sale price and discount percentage, the original price = Sale price ÷ (1 − Discount% ÷ 100). Example: Sale price is ₹800 after 20% discount. Original = 800 ÷ (1 − 0.20) = 800 ÷ 0.80 = ₹1,000.