Speed Calculator

Category: Various Measurements/Units
- January 10, 2026
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Convert between different speed units, calculate travel time, and determine distance based on speed with this versatile calculator.

Speed Calculator

hrs
min

Display Options

About Speed Measurements

Speed is the rate at which an object moves, calculated as distance divided by time. Different regions and industries use different speed units.

Common Speed Units
Unit Symbol Definition Common Uses
Miles per hour mph Miles travelled in one hour Road speed limits in US, UK
Kilometres per hour km/h Kilometres travelled in one hour Road speeds in most countries
Metres per second m/s Metres travelled in one second Scientific measurements, physics
Feet per second ft/s Feet travelled in one second Engineering, ballistics
Knots kn Nautical miles per hour Maritime and aviation speeds
Conversion Formulas
  • mph to km/h: multiply by 1.60934
  • km/h to mph: multiply by 0.621371
  • mph to m/s: multiply by 0.44704
  • km/h to m/s: divide by 3.6
  • m/s to km/h: multiply by 3.6
  • mph to knots: multiply by 0.868976
  • knots to mph: multiply by 1.15078
Speed-Related Formulas
  • Time = Distance ÷ Speed
  • Distance = Speed × Time
  • Speed = Distance ÷ Time

Understanding the Speed Calculator

The Speed Calculator is a handy tool designed to help you easily convert speed units, calculate travel time, and determine how far you can go at a given speed. Whether you're planning a trip or just curious about speed conversions, this calculator provides a straightforward way to do the maths without any hassle.

Convert Speed Units Effortlessly

With the Speed Calculator, converting between different speed units is a breeze. You can switch between various forms of measurement such as miles per hour, kilometres per hour, metres per second, feet per second, and knots. This flexibility ensures you can work with the speeds you’re most familiar with, making calculations feel intuitive.

Calculate Travel Time with Ease

Need to know how long a trip will take? The Travel Time feature allows you to input your distance and speed, and it’ll calculate the time required for your journey. This helps you plan better, whether you're driving, cycling, or running.

Find Distance Based on Speed

If you're interested in knowing how far you can travel in a set amount of time, the Distance section of the calculator has you covered. Just enter your speed and the time you'll be travelling, and it’ll provide the distance. This is especially useful for athletes, travellers, or anyone planning their route.

Explore Speed Measurement Basics

  • Speed is defined as distance travelled over time.
  • Common units include miles per hour (mph) and kilometres per hour (km/h).
  • Different fields may use specific units like metres per second in scientific contexts.

Advanced Features for Precision

For those who prefer precise calculations, the Speed Calculator offers advanced options. You can adjust the number of decimal places shown in your results and choose to display the formulas used for calculations. This gives you a clearer understanding of how the results are derived, making the tool educational as well as functional.

Easy to Use Interface

The calculator features a user-friendly interface with clearly labelled sections and intuitive controls. This design helps users of all ages and skill levels. Buttons to reset or swap units are easy to find, ensuring a smooth experience. You won't need any special training to get started.

Why Use the Speed Calculator?

In summary, the Speed Calculator is a versatile tool that assists with various speed-related calculations. Whether you're converting units, calculating travel time, or figuring out distances, this calculator simplifies the process. It’s perfect for anyone from students to professionals, making it a must-have for your toolkit.