WeCovr

Ratio Calculator

Simplify a ratio or scale it to a new value while keeping the same relationship.

Ratio illustration

Work With Ratios


Ratio calculator guide

WeCovr's ratio calculator helps simplify ratios and scale them while keeping the same relationship. It is useful for recipes, classroom maths, maps, business comparisons, and proportional planning.

What this ratio calculator does

The calculator can simplify a ratio to its smallest whole-number form or scale a ratio to a new target value while preserving the same proportion.

That makes it useful for both quick maths checks and real-world proportion problems.

  • Simplifies ratios.

  • Scales ratios to a new value.

  • Useful for proportion-based tasks.

Where ratio calculations show up

Ratios appear in cooking, classroom exercises, maps, finance comparisons, and any situation where one quantity needs to stay proportional to another.

Why simplifying matters

A simplified ratio is easier to compare and communicate because it removes unnecessary common factors while keeping the relationship the same.

Ratio tasks
TaskWhat it answersExample
SimplifyWhat is the basic form of this ratio?12:18 becomes 2:3
ScaleWhat does the matching value become?2:3 scaled from 2 to 10 gives 10:15
CompareAre two relationships the same?Useful for proportions and recipes
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FAQs
What does simplifying a ratio mean?

It means dividing both parts of the ratio by their greatest common divisor so the relationship is written in its smallest whole-number form.

Can ratios include decimals?

Yes, but many people simplify ratios by first converting them into comparable whole numbers where possible.

Is a ratio the same as a fraction?

They are closely related because both describe relationships between quantities, but a ratio can compare quantities in a wider range of contexts than a basic fraction expression.

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