Rainfall Calculator, Metric Units How Much Water Falls During A Storm?

Use our English system version.

Note: You can enter numbers into any or all of the boxes below:

Method A: Use METERS (for areas such as your roof or yard).

Method B: Use SQUARE KILOMETERS (for large areas).

Select one or more methods to choose the size of your area:

Method A: Meters

by

Method B: Square Kilometers

Select a rainfall amount:

1/10 millimeter 1/2 millimeter 1 millimeter 2 millimeters 4 millimeters 8 millimeters 10 millimeters 15 millimeters 20 millimeters 30 millimeters 50 millimeters 75 millimeters 100 millimeters 200 millimeters 300 millimeters 500 millimeters 1,000 millimeters 2,500 millimeters 5,000 millimeters

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