Units & Numbers Tools
Ratio Calculator
Simplify ratios and solve for missing ratio terms.
Loading tool…
What is Ratio?
A ratio tool: simplification via GCD, missing-term solving via cross-multiplication, and ratio→percent conversion for mixing and scaling tasks.
How it works
Simplification divides both terms by their GCD; solving uses cross-products (a/b = c/d → d = b·c/a); percentages compute term ÷ sum.
- Enter your input. Type or paste your input into the field above — the tool responds instantly.
- Review the result. Output updates live as you type. Everything runs entirely in your browser.
- Copy or download. Use the Copy button to grab the result, or Download to save it as a file.
Examples
Realistic sample
Paste or type any realistic input — the tool computes the result locally and instantly.
Common mistakes
Expecting a server round-trip
Nothing is uploaded — every tool in this category runs entirely in your browser.