Speed Distance Time Calculator

Calculate any of the three variables (speed, distance, or time) when you know the other two.

Calculator

Enter Two Values to Calculate the Third

Enter the speed in miles per hour.

Enter the distance in miles.

Enter the time in hours.

Table of Contents

1 Speed Distance Time Formulas
2 How to Calculate
3 Understanding Units
4 Practical Examples
Concept

Speed Distance Time Formulas

The relationship between speed, distance, and time can be expressed using these formulas:

Formulas:
Speed = Distance / Time
Distance = Speed × Time
Time = Distance / Speed
Steps

How to Calculate

To calculate any of the three variables, follow these steps:

  1. 1
    Identify which variable you want to calculate
  2. 2
    Enter the values for the other two variables
  3. 3
    Use the appropriate formula to calculate the unknown variable
Tips

Understanding Units

The calculator uses these units:

  • Speed: miles per hour (mph)
  • Distance: miles
  • Time: hours
Tip:
For more accurate calculations, convert all measurements to the same unit system before calculating.
Examples

Practical Examples

Example 1 Calculating Speed

A car travels 120 miles in 2 hours.

Speed = 120 miles / 2 hours = 60 mph

Example 2 Calculating Distance

A car travels at 65 mph for 3 hours.

Distance = 65 mph × 3 hours = 195 miles

Example 3 Calculating Time

A car needs to travel 300 miles at 75 mph.

Time = 300 miles / 75 mph = 4 hours

Tools

Transportation Calculators

Gas Mileage Pallet Fuel Cost Container Loading Average Speed

Need other tools?

Can't find the calculator you need? Contact us to suggest other transportation calculators.