How big is a 20 mile radius?
A 20 mile radius covers a circular area of about 1,257 sq mi (around 3,255 sq km) — roughly the same land area as Rhode Island. Measured edge to edge through the center, the full circle spans 40 miles across.
Walking from the center out to the edge covers 20 miles, which takes about 6 hr 40 min at a typical walking pace. Driving that same straight-line distance takes about 40 minutes — real travel time varies a lot depending on roads, terrain, and traffic.
What a 20 mile radius is used for
- Typical restaurant-chain or courier delivery coverage
- A rideshare or taxi service area around a city
- A weather warning radius, like for a tornado or flash flood
- Local radio or broadcast signal coverage
Draw a 20 mile radius on the map →
FAQ
What is the area of a 20 mile radius?
A 20 mile radius covers a circular area of about 1,257 sq mi (roughly 3,255 sq km) — about the same land area as Rhode Island.
How long would it take to walk or drive 20 miles?
Walking from the center to the edge (20 miles) takes about 6 hr 40 min at an average walking pace. Driving the same straight-line distance would take about 40 minutes, though actual travel time depends heavily on roads, terrain, and traffic.