Find average speed from distance and elapsed time.
Speed Calculator
Form
Results
Speed
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Table of Contents
1
What is Speed?
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How to Use This Calculator
- Enter or select Distance, Time.
- 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
Speed = distance/time
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Variables Explained
| Input | What it means |
|---|---|
| Distance | Length traveled or measured between the points stated in the form. |
| Time | Elapsed time or duration in the unit selected on the form. |
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Worked Example
Traveling 150 km in 2.5 hours gives an average speed of 60 km/h.
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Why Use This Calculator?
Use the formula and worked example to check the relationship between the input and output before carrying the result into a longer calculation.
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Common Mistakes
- Average speed includes the elapsed time you enter; stopped time changes the trip average.
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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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