Measurement & sensors
Light meter
Accurate light meter with a logarithmic scale: 8 levels from total darkness to full sunlight, smoothed for a steady display.
Measures ambient illuminance in lux with the device's light sensor and shows it on an arc gauge with 8 levels, from total darkness below 10 lux to full sunlight above 30,000 lux. The value is smoothed over several readings for a steady display.
Android 7.0+ · Free to download
Key features
Illuminance measured in lux with the device's physical light sensor
Logarithmic scale suited to the huge range of real-world light levels
8 visual levels: darkness, dim, home interior, office, bright, overcast sky, daylight, full sun
Average smoothed over several samples to avoid jumpy readings
270° arc gauge for quick, intuitive reading
Why use it?
Check a desk gets the 500 lux recommended by workplace ergonomics standards
Measure the lighting of a shop window and see where it sits on the scale
Compare a room's natural light with the shutters open and closed
Works offline
Most tools work without an internet connection.
No account
No sign-up, no email address required.
Free to download
Every tool is free. A one-time “Zero Ads” purchase removes the ads.
Light meter is part of Tooliz
Along with 41 other tools. Free to download, on Android.
More tools: Measurement & sensors
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Quentin (QuentinRG)Independent developer · Paris
Tooliz is an Android toolbox I built independently to bring everyday utilities together. Free to download, no account needed, designed to be useful and simple.
Discover all Tooliz tools