CalcVind

Speed, Distance & Time Calculator

Find speed, distance or travel time from the other two

What You Know

Travel Time

2 h 30 minTime
2.5
In hours
150
In minutes
  1. 1
    Choose what to find
    Speed, distance or time
  2. 2
    Enter the other two
    Pick units from the menus
  3. 3
    See the answer
    In several units

The speed, distance and time formula

Speed is distance covered per unit of time. Rearrange the same formula to find any one of the three.

Speed = distance ÷ time

Distance = speed × time · Time = distance ÷ speed

Planning a road trip

Highway averages in India are often 50–70 km/h once you count towns, toll plazas and breaks, even if you drive faster in between. Use a realistic average speed for travel time.

Units

1 m/s = 3.6 km/h; 1 mph = 1.609 km/h; 1 knot = 1.852 km/h. Pick the unit in each field's menu and the calculator converts for you.

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Frequently asked questions

How long does 150 km take at 60 km/h?

2 hours 30 minutes (150 ÷ 60 = 2.5 hours).

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

Divide by 3.6. 72 km/h = 20 m/s.

Is average speed the average of the speeds?

Not usually. Average speed is total distance ÷ total time. Going 60 km/h one way and 40 km/h back averages 48 km/h, not 50.

Last reviewed: October 2026