Tools

Word / Character Counter Case Converter Lorem Ipsum Generator JSON Formatter Regex Tester Cron Expression Parser String Escape / Unescape SQL Formatter

Merge PDF Split PDF PDF to Image Image to PDF Compress PDF Unlock PDF

Image Editor Image Converter Image Resizer Image Cropper OCR Text Extractor Image Compressor

Hash Generator QR Code Generator Password Generator Color Palette Generator Random Number Generator UUID Generator

Base64 Encoder/Decoder URL Encoder/Decoder HTML Encoder/Decoder Unicode Encoder/Decoder ASCII Encoder/Decoder

JSON Viewer CSV Viewer Markdown Viewer JWT Viewer Diff Viewer

JSON → YAML JSON → XML JSON → TypeScript JSON → CSV YAML → JSON CSV → JSON XML → JSON Markdown → HTML TOML → JSON Unix Timestamp Converter JSON → TOML Unit Converter Data Size Converter HEX ↔ RGB Converter

Speed Calculator

Calculate speed, distance, or time.

Solve for

Distance

km

Time

h

How to Calculate

Relationship between speed, distance, and time: • Speed = Distance ÷ Time • Distance = Speed × Time • Time = Distance ÷ Speed Select the value you want to find, then enter the other two values. Speed is in km/h, distance in km, and time in hours (h).

Example

Traveling 100 km in 2 hours Speed = 100 ÷ 2 = 50 km/h (≈ 13.89 m/s) Traveling at 60 km/h for 3 hours Distance = 60 × 3 = 180 km Traveling 150 km at 75 km/h Time = 150 ÷ 75 = 2 hours (120 minutes)

FAQ

How do I convert km/h to m/s?

Divide km/h by 3.6 to get m/s. For example, 36 km/h = 10 m/s. The result also shows the m/s equivalent.

What is the difference between average speed and instantaneous speed?

Average speed is total distance divided by total time. Instantaneous speed is the speed at a specific moment. This calculator computes average speed.

Can I calculate marathon pace?

Yes, enter the marathon distance (42.195 km) and your target time in hours to find your average speed. For example, a 4-hour target gives about 10.55 km/h.

Related Tools

Unit Converter

Convert length, weight, temperature, and more.

Time Calculator

Add and subtract time.

Area Calculator

Calculate the area of various shapes.

Volume Calculator

Calculate the volume of various shapes.

Data Size Converter

Convert between B, KB, MB, GB, TB, PB in binary (1024) or decimal (1000) units.