Speed Calculator

Use our free speed calculator to solve speed, distance, or time problems. Given any two values, the calculator finds the third using the formula Speed = Distance ÷ Time. Also converts to km/h and mph.

Math

Find

Distance

Time

Speed

Formula

Solve any speed-distance-time problem. Given two values, the calculator finds the third. Shows the formula, step-by-step calculation, and conversions to km/h and mph when computing speed.

S = D ÷ T, D = S × T, T = D ÷ S

Percentage: The percentage value you want to apply

Number: The original number or value

Result: The calculated result

How It Works

1Select what you want to find: Speed, Distance, or Time.
2Enter the two known values.
3Click Calculate.

Examples

100m in 10s → speed

1.S = 100 ÷ 10 = 10 m/s = 36 km/h

Result: 10

10 m/s for 5s → distance

1.D = 10 × 5 = 50 m

Result: 50

Frequently Asked Questions

Speed = Distance ÷ Time. This is average speed assuming constant velocity.

Multiply by 3.6. (1 m/s = 3.6 km/h)

Multiply by approximately 2.237.

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CalculateMe Team

Last updated: 2026-07-15

Speed Calculator

Formula

How It Works

Examples

100m in 10s → speed

10 m/s for 5s → distance

Frequently Asked Questions

What is the speed formula?

How do I convert m/s to km/h?

How do I convert m/s to mph?

Related Calculators

Speed Calculator

Formula

How It Works

Examples

100m in 10s → speed

10 m/s for 5s → distance

Frequently Asked Questions

What is the speed formula?

How do I convert m/s to km/h?

How do I convert m/s to mph?

Related Calculators