Online tape measure
For lengths that aren't a straight line: the outline of a shape, a curved edge, or a route on a map. Tap your way along it and the tape adds up the total.
How to use it
- Tap where the path starts. A numbered point appears.
- Tap the next spot along the path, then the next. Each step shows its own length.
- The total appears in the box above the tool bar.
Drag any point to adjust it, or tap its small red cross to remove it. Open the box's details to undo the last point or clear them all.
Measuring curves
The tape measures straight lines between your points, so on a curve more points means a more accurate result. Around a circle, eight points read about 2.6% short, and sixteen points about 0.6% short. Put the points closer together where the curve is tightest.
Measuring on a map or plan
Open the map or floor plan with Measure a photo in the tool bar (under More on a phone). Trace the route with points, then scale the total using the map's scale bar. For example, if the bar shows 1 km as 4 cm on screen and your route measures 10 cm, the route is 2.5 km. Measure the scale bar with the tape too, rather than trusting the printed size, and you don't even need to calibrate.