Ratio & Proportion Calculator
Simplify ratios, find missing values in proportions, and compare two ratios side by side.
Ratio & Proportion Calculator
Simplify ratios, find missing values, and compare proportions
Simplified Ratio
2 : 3
GCF = 6
Find the missing value in a proportion: a : b = c : d
Missing Value (d)
20
3:4 is larger than 2:3
Ratio 1 = 0.75 | Ratio 2 = 0.667
Save Configuration Snapshot
Save current parameters to your dashboard for instant one-click reloading.
About This Calculator & Guide
About the Ratio & Proportion Calculator
The Ratio & Proportion Calculator is a specialized online utility designed to help you simplify ratios, find missing values in proportions, and compare ratios. free online ratio calculator. It performs calculations in real-time to provide immediate, reliable estimates for study, work, or daily tasks.
How to Use
Simply enter your parameters in the input fields of the calculator widget above. The tool evaluates the inputs instantly and displays the results in real-time. You can modify any value to check alternate scenarios and compare figures dynamically.
Data Privacy & Safety
All calculations are executed locally within your web browser. No inputs are sent to our servers or stored externally, ensuring your personal and financial details remain completely private and secure.
FAQ
Frequently Asked Questions
What is a proportion in mathematics?+
A proportion is a mathematical statement showing that two ratios are equal, written as A/B = C/D. If three of the values are known, you can solve for the fourth using cross-multiplication: A * D = B * C.
How do you simplify a ratio to its simplest form?+
To simplify a ratio (like 15:25), divide all parts of the ratio by their Greatest Common Divisor (GCD). Since the GCD of 15 and 25 is 5, dividing both terms by 5 simplifies the ratio to 3:5.
What is an aspect ratio?+
An aspect ratio is the proportional relationship between the width and height of an image or screen. Common aspect ratios include 16:9 for widescreen monitors and 4:3 for older televisions.
How do you scale a recipe using ratios?+
Determine the ratio of the ingredients, find the scaling factor by dividing the new desired amount of a single ingredient by its original amount, and multiply all other ingredients by that same scaling factor.