It is the middle of July and both you and your tomatoes are
wilting in your yard, both looking to the sky and hoping for
rain. Or, maybe a low-pressure cell has been napping overhead,
and your arm is hurting from holding that umbrella while you
watch your basement fill up with water. Either way, you would
like to know how much rain has fallen—how many gallons
have come down from the skies onto your roof, yard, block, or
You might even want to know how many baths you could get from
In the form below, choose an area(s) and a rainfall amount to
see how many gallons of water fell from the sky onto that area.
I think you'll be surprised about much rain really does fall
during a rainstorm.
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
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