Rainfall Volume Calculator

Calculate how much rainwater falls on a given surface area. Useful for rain harvesting and drainage planning.

49.4Kuses
7.9/10(444)

Input

Gallons
748.1
Liters
2,831.7
Cubic Feet
100.00
Cubic Meters
2.832
Weight (lbs)
6,239
Weight (kg)
2,832
Surface Area: 1,200 ft² (111.5m²)

Features

  • Calculate rain volume in gallons and liters
  • Support for inches and millimeters of rainfall
  • Area input in feet or meters
  • Water weight calculation

Disclaimer: This tool is provided “as is” for informational and educational purposes only. Results may not be 100% accurate. ToolBird makes no warranties, express or implied, regarding the accuracy, reliability, or completeness of any output generated by this tool. This tool does not constitute professional, legal, financial, medical, or tax advice. Always consult a qualified professional for important decisions. By using this tool, you agree that ToolBird and its operators shall not be held liable for any damages, losses, or consequences arising from the use of this tool or reliance on its results. All processing occurs in your browser — we do not store, transmit, or access your data. Use at your own risk.