About Us

Real Distance Calculator is a free tool for measuring the distance and travel time between two or more places — cities, addresses, airports, landmarks, anywhere you can search for. Add your stops, pick a transport mode for each leg (walk, bike, drive, or fly), and get a distance, a time, and the exact formula behind every number.

Why the math is shown in the open

Most online distance calculators hide their arithmetic behind a black box. This one doesn't. Every leg is calculated with the haversine great-circle formula — the same math real flight paths follow — and the formula, with your actual numbers plugged in, is printed right below the result. If a number looks off, you can check it yourself.

A fun detour: the Solar System page

We also built a solar system distance calculator for the same reason people ask "how long would it take to drive to the Moon" — because it's a fun way to feel the scale of space. Click the Sun and planets in order, pick a mode of transport up to "Speed of Light," and see illustrative distance and travel time. It's clearly labeled as for-fun and isn't real-world travel advice.

No sign-up required

There's no account to create and no paywall between you and your result. See ourPrivacy Policy for exactly what data is (and isn't) used, and ourTerms & Conditions for how to use the tool responsibly.