Ratio Calculator
Simplified ratio = a÷GCF(a,b) : b÷GCF(a,b)GCF=6; 48÷6=8; 18÷6=3; ratio=8:3
Free online tool
Ratio Calculator
Enter two numbers to find their ratio reduced to lowest terms.
Instant calculation
Ratio Calculator
Enter two numbers to find their ratio reduced to lowest terms.
Your result
Calculation
Your numbers stay in this browser. Nothing is uploaded or saved.
Three clear steps
How to use this calculator
- 01
Enter first number
Type the first value of the ratio.
- 02
Enter second number
Type the second value of the ratio.
- 03
See simplified ratio
Calculate to see the ratio in lowest terms.
The formula
How this calculation works
Divide both numbers by their greatest common factor to reduce to simplest terms.
Check the method
Worked examples
Each example follows the same formula used by the calculator.
Simplify ratio 48:18?
GCF=6; 48÷6=8; 18÷6=3; ratio=8:38:3Common questions
Questions about this calculation
What is the Ratio Calculator?
The Ratio Calculator helps you simplify a ratio and express it in its simplest form. Enter your values and select Calculate to get an instant result.
How is the result calculated?
Divide both numbers by their greatest common factor to reduce to simplest terms.
Can you show an example?
Example: Simplify ratio 48:18? — 8:3.
Is my data saved when I use the Ratio Calculator?
No. All calculations run locally in your browser. Your inputs and results are never uploaded, stored or shared with anyone.
Is the Ratio Calculator free to use?
Yes. The Ratio Calculator is completely free. No account, sign-up or payment is required. It works on mobile, tablet and desktop.
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