Shower area reading
- Input
- 0,57°
- Expected output
- 10 mm/m, ou 1,0 %
Clear fall: water runs off without pooling.
Carregando ferramenta… / Loading tool…
floor fall towards a drain mm per metre
Wet-area floors need a minimum slope for water to drain, and a ceiling so they do not feel uncomfortable underfoot. Your phone measures that fall in millimetres per metre, which is exactly the unit bricklayers and designers work in.
Clear fall: water runs off without pooling.
A negative sign means water there runs away from the drain.
Once calibrated, a phone accelerometer resolves roughly 0.1 to 0.2 degrees, which is about 2 to 3.5 millimetres per metre. That is enough to set a countertop, hang a shelf, check a washing machine or level a picture frame. It is not enough for precision work such as industrial machine alignment or surveying, where a certified electronic level with arc-second resolution is used.
That depends on the design, the floor finish and the standard or building code that applies to your case, not on a single universal rule. Check with the responsible designer or the finish manufacturer specification. The tool measures what exists accurately; deciding which value to adopt is a design decision.
Do not rest the device directly on it. Lay an aluminium straightedge or a flat board across the surface and rest the phone on that: besides protecting the device, the straightedge averages the reading and prevents a local few-millimetre bump from producing a misleading measurement.
Tap to turn on the accelerometer. Everything is measured on your device and nothing is sent over the internet.
Lay the device screen up on the surface. The bubble levels both axes at once.
Tip: rest the device on a surface you know is flat and tap Calibrate zero. Without it, the case and the raised camera bump usually cause a fixed error of 0.3 to 1 degree.
Everything is measured on your device. No accelerometer reading leaves the browser, and the calibration is stored only in your phone local storage.