Introduction & principle
1 mm of rainfall over 1 m² equals 1 liter of water. The tool extends this to area volumes and time-integrated totals.
All toolsMeteorological Calculation
Precipitation Conversion Tool
Convert rainfall depth (mm) to volume (L/m²), rate (mm/h), and accumulated totals.
Live tool
Volume: 1,000 L
Rate: 5.00 mm/h
Class: Moderate
Tool advantage
One screen for all four representations amateur rainfall loggers need.
Detailed usage guide
- 1Enter depth or volume; the other updates.
- 2Enter a duration to get rainfall rate and standard intensity classification.
Common problems & FAQ
What counts as heavy rain?
WMO classifies > 7.5 mm/h as heavy and > 50 mm/h as violent.
Related tools
Temperature & Humidity Converter
Convert between °C, °F, K and between absolute, relative, and specific humidity.
OpenOutdoor Observation Risk Assessment
Score outdoor observation safety using current wind speed, precipitation, and visibility.
OpenHistorical Weather Lookup
Query daily historical weather for any location using the free Open-Meteo archive API.
Open