Fill in any two values in a panel below and the third resolves instantly on its gauge — like a dashboard doing the arithmetic while you drive.
Distance
D = S × T
How far will you get?
Give it speed and time.
km/h
hr
min
kilometres covered
Speed
S = D ÷ T
How fast must you go?
Give it distance and time.
km
hr
min
0km/h
required speed
Time
T = D ÷ S
How long will it take?
Give it distance and speed.
km
km/h
0hr 0min
time on the road