Speed, distance & time

Fill any two of speed, distance, time and solve the third — with km/h, mph, m/s, knots and km, mi, m, nautical miles.

speed = distance ÷ time — fill two, solve the third.

Time

Leave the quantity you want to solve empty. For time, leave all three boxes empty.

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How to use

  1. Fill any two of the three rows.
  2. Leave the unknown empty.
  3. Calculate — the answer is shown in your chosen units.

What it supports

s = d/t for km/h, mph, m/s, knots and m, km, mi, nmi; time as h:m:s with minutes/seconds under 60. Exactly two of the three fields must be filled.

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