Browse All Tools
HomeCalculatorsPDF ToolsDocument GeneratorsBlogAboutContact
Home/Calculators/Ratio Calculator

Ratio Calculator

Simplify ratios and split amounts proportionally

Last Updated: July 2026
First part of ratio
Second part of ratio
Total to split in ratio (leave 0 to skip)
Simplified Ratio
ā€”
In simplest form
Part 1
ā€”
Value of first part
Part 2
ā€”
Value of second part

Ratio Calculation

ComponentValue

Advertisement

What Is a Ratio Calculator?

A Ratio Calculator simplifies ratios to their lowest terms and can split a total amount proportionally according to a given ratio. It shows the GCD (Greatest Common Divisor) and step-by-step calculations.

Ratios are fundamental in mathematics and real-life applications. This calculator helps you simplify ratios, understand proportional relationships, and divide amounts fairly according to specified ratios.

Ratio Formulas

Simplified Ratio = Value1/GCD : Value2/GCD
Part 1 = (Ratio1 / Sum) Ɨ Total
Part 2 = (Ratio2 / Sum) Ɨ Total
GCD = Greatest Common DivisorSimplified = Lowest termsSplit = Proportional division

Frequently Asked Questions

How to simplify a ratio?
Divide both numbers by their Greatest Common Divisor (GCD). For example, 4:6 ā†’ GCD is 2 ā†’ 4/2 : 6/2 = 2:3. The simplified ratio is 2:3.
How to split a total in a ratio?
Add the ratio parts, then divide the total proportionally. For example, split 100 in ratio 2:3: Sum = 2+3 = 5. Part 1 = (2/5) Ɨ 100 = 40. Part 2 = (3/5) Ɨ 100 = 60.
What is the difference between ratio and proportion?
A ratio compares two quantities (e.g., 2:3). A proportion is an equation stating two ratios are equal (e.g., 2:3 = 4:6). Ratios show relative sizes; proportions show equality between ratios.
How to find the missing value in a ratio?
If a:b = c:d, then aƗd = bƗc. For example, if 2:3 = x:15, then 2Ɨ15 = 3Ɨx, so x = 30/3 = 10.
Where are ratios used in real life?
Ratios are used in cooking (ingredient proportions), business (profit margins, debt-to-equity), finance (P/E ratios), maps (scale), mixing (concrete, paint), and many other applications.

Related Calculators

Percentage

Percentage Calculator

Calculate percentages.

Profit

Profit Margin Calculator

Calculate profit ratios.

Unit

Unit Converter

Convert between units.

BMI

BMI Calculator

Calculate BMI ratio.

Found This Useful?

Simplify ratios and split amounts easily.

Try Another Calculator