Ratio Calculator

Use the free Ratio Calculator to simplify a ratio to its lowest terms. Enter your values below and get an instant, accurate result.

Ratio Calculator

Free & Instant

The Ratio Calculator helps you simplify a ratio to its lowest terms. Simply fill in the fields above and click Calculate to get an instant result.

This calculator is part of Calculate Wiki’s Math Calculators collection.

What You’ll Need

  • First Value
  • Second Value

Formula Used

Simplified Ratio = A ÷ GCD(A,B) : B ÷ GCD(A,B), where GCD is the greatest common divisor

Example Calculation

Using example inputs — First Value = 12; Second Value = 18 — the Ratio Calculator returns:

ValueResult
Simplified ratio2 : 3
Decimal equivalent0.6667

2 : 3. Simplified from 12 : 18.

Helpful Information

Results from the Ratio Calculator are estimates based on standard formulas used in the math calculators field. For projects with significant cost, health, or safety implications, consider verifying results with a qualified professional.

Frequently Asked Questions

Is the Ratio Calculator free to use?
Yes — the Ratio Calculator on Calculate Wiki is completely free, with no sign-up required.
How accurate is the Ratio Calculator?
The Ratio Calculator uses a standard, well-documented formula from the math calculators field. Results are for informational and planning purposes.
Can I use this on my phone?
Yes, this calculator is fully mobile-friendly and works on any modern browser.
What does the result mean?
For the example values shown above, the result is 2 : 3. Simplified from 12 : 18.

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