Weather tools

Snow Water Equivalent Calculator

Calculates the snow water equivalent (SWE), which is the amount of water contained within a given volume of snow.

Before you use this tool

Use this if

  • Calculates the snow water equivalent (SWE), which is the amount of water contained within a given volume of snow.
  • You want a calculation that exposes its formula: Snow Water Equivalent (inches) = Snow Depth (inches) × Snow Density
  • You already have Snow Depth, Snow Density values to enter.

Skip this if

  • You need an official emergency alert or life-safety instruction.
  • You need a certified professional forecast instead of a calculator estimate.
When to use or skip it

Use this if

  • Calculates the snow water equivalent (SWE), which is the amount of water contained within a given volume of snow.
  • You want a calculation that exposes its formula: Snow Water Equivalent (inches) = Snow Depth (inches) × Snow Density
  • You already have Snow Depth, Snow Density values to enter.

Skip this if

  • You need an official emergency alert or life-safety instruction.
  • You need a certified professional forecast instead of a calculator estimate.