Free X Out of Y Calculator
X Out of Y Percentage Calculator
Enter any two numbers to find what percentage X is of Y. Perfect for test scores, grades, and quick math.
X Out of Y Calculator
X = your score. Y = total possible.
Free X out of Y percentage calculator · QuickerGrade runs in your browser — nothing is uploaded or saved.
How It Works
Three steps, no signup, results as you type.
Enter X
Type your score, points earned, or the “part” of the whole — any number, whole or decimal.
Enter Y
Type the total possible points, questions, or the “whole” that X is measured against.
Get your percentage
Your percentage, letter grade, and fraction appear instantly as you type — 18 out of 20 = 90% = A-.
Features
Everything you need, nothing you don’t.
Instant Results
The percentage updates the moment you type. No calculate button, no waiting.
Letter Grade
Every result includes a letter grade from A+ to F on the standard scale.
Any Numbers
Whole numbers, decimals, even X bigger than Y — if it divides, it calculates.
Mobile Friendly
Big, easy-to-tap inputs that work great on phones, tablets, and desktops.
Free
Unlimited calculations with no account, no signup, and no cost — ever.
Private
No signup, no account. Everything runs in your browser — nothing is uploaded.
Frequently Asked Questions
Quick answers about X out of Y calculations.
How do you calculate X out of Y as a percentage?
Divide X by Y and multiply by 100: (X ÷ Y) × 100. For example, 18 ÷ 20 = 0.9, and 0.9 × 100 = 90%.
What is 18 out of 20 as a percentage?
18 out of 20 is 90%. Divide 18 by 20 to get 0.9, then multiply by 100. On the standard grading scale, 90% is an A-.
How do I find the letter grade for X out of Y?
Convert X out of Y to a percentage first, then use the standard scale: 90–100% is an A, 80–89% a B, 70–79% a C, 60–69% a D, and below 60% an F. The calculator above shows the letter grade automatically.
Can X be bigger than Y?
Yes. If you earned bonus points or extra credit, X ÷ Y gives more than 100% — for example, 22 out of 20 = 110%.
Does it work with decimals?
Yes. Enter decimals like 16.5 out of 20 and the calculator handles them the same way: (16.5 ÷ 20) × 100 = 82.5%.
Is my data saved anywhere?
No. The calculator runs entirely in your browser. Nothing is uploaded, stored, or shared.
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Average Grade · Final Grade · Weighted Grade · GPA Calculator · Semester Grade · High School GPA · GPA Scale
Free X out of Y percentage calculator for students and teachers · QuickerGrade runs in your browser — nothing is uploaded or saved.