Features

• Simplify Ratio: Instantly calculates the Greatest Common Divisor (GCD) to reduce complex numbers to their most minor integer parts.
• Proportion Solver: Essential for scaling recipes, adjusting image dimensions, or solving math problems (A:B = C:D).
• Live Calculation: Updates the “Missing Value” as you type, with the target field highlighted in the site’s primary blue.

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A ratio calculator helps you compare two or more quantities in a simple and meaningful way. Ratios are used everywhere—from mathematics and exams to screen sizes, videos, images, and real-life comparisons. If you’ve ever wondered what a ratio is or how to calculate ratios correctly, this tool makes it easy.

Instead of manually simplifying numbers, the calculator helps you find ratios quickly, clearly, and without confusion.

What Is a Ratio?

A ratio shows the relationship between two or more values by indicating how many times one value contains or compares to another.

Simple Example

If two numbers are in the ratio 2:3, it means that for every two parts of one quantity, there are three parts of the other.

In mathematics, ratio helps with:

• Comparisons
• Scaling
• Distribution
• Proportion problems

Ratio Formula

The basic ratio formula is:

Ratio = Value A : Value B

To simplify a ratio:

1. Divide both numbers by their most significant common factor
2. Write the simplified form

Example:

The ratio of 20 and 30 → 2 : 3

The calculator does this automatically.

Ratio and Proportion Explained

• Ratio compares quantities
• The proportion shows equality between the two ratios

Example:

2 : 3 = 4 : 6 (This is a proportion)

Understanding ratios and proportions is essential in math problems, exams, and daily applications.

Common Types of Ratios

Ratio in Mathematics

Used in exams, word problems, and number comparisons.

Aspect Ratio

Commonly used for screens, images, and videos, such as:

• 16 : 9 (widescreen)
• 9 : 16 (vertical video)
• 4 : 3 and 1 : 1

Ratio of Three Numbers

Example:

Three numbers are in the ratio 2 : 3 : 5

The calculator helps simplify and understand such ratios easily.

Equivalent Ratios

Different ratios that represent the same relationship, such as:

• 2 : 4
• 1 : 2

Where Ratios Are Used in Real Life

Ratios are commonly used in:

• Mathematics and education
• Image and video dimensions
• Mixing ratios
• Scale drawings and maps
• Population and data comparisons

Understanding ratios makes comparisons more precise and more accurate.

FAQs – Ratio Calculator