Snow Load Calculator
Calculate roof snow load in PSF based on snow depth, type, and roof pitch. Assess structural risk level.
Inputs
inches
sq ft
°
Results
Load per Sq Ft
14.1 PSF
Total Roof Load21,143 lbs
Total Load10.57 tons
Risk LevelLow
% of Typical Capacity47%
Load per Sq Ft
14.1 PSF
How to Use This Calculator
- Start by filling in the input fields below. Results update instantly as you type, so you can experiment with different values to see how they affect the outcome.
- Snow Depth — Depth of snow accumulation. Accepts values from 1 inches to 120 inches (default: 12 inches).
- Roof Area — Roof surface area. Accepts values from 100 sq ft to 10,000 sq ft (default: 1,500 sq ft).
- Snow Type — Type of snow (fresh, packed, wet). Choose from: Fresh/Light Snow, Settled Snow, Packed Snow, Ice. default: 1.
- Roof Pitch (degrees) — enter a number in °. Accepts values from 0 ° to 60 ° (default: 20 °).
- Once all inputs are set, review your results in the Results panel. Here's what each output means:
- Load per Sq Ft — shown as a numeric value. This is the primary result of this calculator.
- Total Roof Load — shown as a numeric value.
- Total Load — shown as a numeric value.
- Risk Level — your calculated result.
- % of Typical Capacity — shown as a numeric value.
- Scroll down to explore 2 charts (Roof Capacity Used, Load by Snow Type) for a visual breakdown of the data.
- Explore the related calculators below if you need deeper analysis or want to approach this topic from a different angle.
Ad Placeholder
Related Calculators
Wind Chill Calculator
Calculate the wind chill temperature using the official NWS formula. Assess frostbite risk based on conditions.
Heat Index Calculator
Calculate the heat index (feels-like temperature) based on air temperature and humidity. Assess heat danger level.
USDA Growing Zone Calculator
Find your USDA Plant Hardiness Zone based on average annual extreme minimum temperature. Know what plants will thrive in your area.
Ad Placeholder