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Speed Calculator

Calculate speed, distance, and time

Last Updated: July 2026
Distance traveled
Time taken
What to calculate
Result
—
Calculated value
Speed
—
Kilometers per hour
Speed
—
Meters per second

Speed Calculation

ComponentValue

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What Is a Speed Calculator?

A Speed Calculator computes speed, distance, or time based on the other two values. It can calculate speed from distance and time, distance from speed and time, or time from distance and speed.

This calculator is useful for travel planning, physics problems, sports training, and any scenario involving speed, distance, and time calculations.

Speed Formulas

Speed = Distance / Time
Distance = Speed × Time
Time = Distance / Speed
1 km/h = 0.2778 m/s
Speed = Distance ÷ TimeDistance = Speed × TimeTime = Distance ÷ Speed

Frequently Asked Questions

How to calculate speed?
Speed = Distance / Time. For example, 100 km in 2 hours: 100 / 2 = 50 km/h. Speed can be expressed in km/h, m/s, mph, or other units.
How to convert km/h to m/s?
Divide by 3.6. For example, 50 km/h = 50 / 3.6 = 13.89 m/s. To convert m/s to km/h, multiply by 3.6.
What is the difference between speed and velocity?
Speed is scalar (magnitude only). Velocity is vector (magnitude + direction). For example, 50 km/h is speed. 50 km/h north is velocity. Speed is always positive; velocity can be negative.
How to calculate average speed?
Average Speed = Total Distance / Total Time. If you travel 100 km in 2 hours and 50 km in 1 hour: Average = 150 / 3 = 50 km/h. Do not average the speeds.
What is the formula for distance and time?
Distance = Speed × Time. Time = Distance / Speed. For example, at 60 km/h for 3 hours: Distance = 60 × 3 = 180 km. To travel 180 km at 60 km/h: Time = 180 / 60 = 3 hours.

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