Ratio and Proportion Calculator
Calculate the ratio between two numbers, percentage equivalent, simplified ratio, and proportion unknown.
Source / method note
This calculation is based on basic ratio and proportion formulas. The ratio is calculated as a/b, and its percentage equivalent as (a/b) × 100. In proportion mode, x = b×c/a is used assuming a/b = c/x.
Legal / official rate note
This tool is for general mathematical purposes; it is not a substitute for financial analysis, statistical reporting, or official decision support.
