Speed Distance Time Calculator
Speed Distance Time Calculator
Speed, distance, and time are linked by one simple equation — knowing any two lets you calculate the third. Choose which one to solve for, enter the other two, and the result (along with the full relationship) is calculated instantly.
Selecting which value to "solve for" first matters because it determines which two fields you're expected to fill in — whatever value happens to already be in the field matching your solve-for choice is simply ignored during calculation, so there's no need to clear it out manually before switching. This relationship (speed equals distance divided by time, and its two rearrangements) is one of the most widely used formulas outside pure physics class too — trip planning, running pace calculations, and shipping/logistics timing all reduce to exactly this same three-variable relationship.
- Formula: Speed = Distance ÷ Time; Distance = Speed × Time; Time = Distance ÷ Speed.
- Pick "Solve For" first: select which value you want computed — the other two fields are what you fill in; whatever you type into the field matching your "Solve For" choice is ignored.
- Units: distance and speed use the same distance unit (e.g. km and km/h) for consistency, and time is always in hours.
If I drove 100 km in 1.67 hours, what was my speed?
Set "Solve For" to Speed, enter Distance = 100 and Time = 1.67 — the result is 60 km/h (100 ÷ 1.67).
How do I find travel time for a given distance and speed?
Set "Solve For" to Time, enter your Distance and Speed — Time = Distance ÷ Speed.
Speed Distance Time Calculator
Speed, distance, and time are linked by one simple equation — knowing any two lets you calculate the third. Choose which one to solve for, enter the other two, and the result (along with the full relationship) is calculated instantly.
Selecting which value to "solve for" first matters because it determines which two fields you're expected to fill in — whatever value happens to already be in the field matching your solve-for choice is simply ignored during calculation, so there's no need to clear it out manually before switching. This relationship (speed equals distance divided by time, and its two rearrangements) is one of the most widely used formulas outside pure physics class too — trip planning, running pace calculations, and shipping/logistics timing all reduce to exactly this same three-variable relationship.
- Formula: Speed = Distance ÷ Time; Distance = Speed × Time; Time = Distance ÷ Speed.
- Pick "Solve For" first: select which value you want computed — the other two fields are what you fill in; whatever you type into the field matching your "Solve For" choice is ignored.
- Units: distance and speed use the same distance unit (e.g. km and km/h) for consistency, and time is always in hours.
If I drove 100 km in 1.67 hours, what was my speed?
Set "Solve For" to Speed, enter Distance = 100 and Time = 1.67 — the result is 60 km/h (100 ÷ 1.67).
How do I find travel time for a given distance and speed?
Set "Solve For" to Time, enter your Distance and Speed — Time = Distance ÷ Speed.