Calculator
Ratio Calculator — Simplify & Scale
- Calculate
- Mobile Friendly
- Accessibility Tested
- Formula Verified
- SEO Optimized
- Fast Loading
- Responsive
Version 1.0.0 · Last reviewed
How it worksShow guide
Introduction
Simplify a ratio and scale either side so recipes, maps, and mixtures stay proportional.
Formula
Simplify a ratio by dividing both parts by their greatest common divisor, and scale either side proportionally.
- a — First quantity
- b — Second quantity
Step-by-step
- Enter both parts of the ratio.
- Choose which side to scale to a target value.
- Enter the target value for that side.
- Read the simplified and scaled ratio.
Worked example
2:6 simplifies to 1:3. Scaling B to 9 gives A = 3.
Use cases
- Scale a recipe up or down
- Simplify mixing ratios
- Resize dimensions while keeping proportion
Frequently asked questions
Can I use decimals?
Yes. Both whole numbers and decimals work.
What does scale side mean?
If you set scale side to B and scale-to 9, B becomes 9 and A is adjusted to keep the same ratio.
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