A unit rate expresses how much of one quantity corresponds to one unit of another.
Unit Rate Calculator
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Unit Rate
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Table of Contents
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What is Unit Rate?
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How to Use This Calculator
- Enter or select a, b.
- Check the unit beside each measurement. For a percentage or rate, use the scale and time period stated in the form.
- Choose Calculate, then compare the output with the formula and example below. If you change a value or option, calculate again to update the result.
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Formula Used
Unit rate = amount ÷ number of units
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Variables Explained
| Input | What it means |
|---|---|
| a | A value or coefficient in the formula above; keep the displayed position and sign. |
| b | A value or coefficient in the formula above; keep the displayed position and sign. |
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Worked Example
180 kilometers in 3 hours is 60 kilometers per hour.
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Why Use This Calculator?
Compare offers or performances measured over different numbers of units.
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Common Mistakes
- State the units: 60 kilometers per hour and 60 hours per kilometer mean very different things.
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Frequently Asked Questions
Should I round numbers before calculating?
Keep the original input precision through the calculation and round the final answer to the precision you need. Rounding an intermediate result can change later steps.
Why can a manual calculation differ slightly?
Check the operation, units, signs and rounding first. Equivalent fractions or expressions can look different while representing the same value.
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Sources & References
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