Roof Snow Load Calculator
Construction & Home ImprovementEstimate the weight of snow on a roof from its depth, density, roof dimensions, and pitch.
Snow Load
Snow load pressure on the roof surface, in pounds per square foot.
Total Snow Weight
19,921
Total weight of snow currently on the sloped roof surface.
Found this calculator useful?
From Scratch To $10K/Month In 60 Days
This is a proven money making system that takes students by the hand to make at least $10,000 per month, every month. Students get 12 weeks of guided coaching in addition to the "MPS Super Funnel" and tools.
We value your privacy and promise not to sell or misuse your information. Here's our privacy policy.
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Construction & Home Improvement calculators
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Construction & Home Improvement calculators
Frequently Asked Questions
What snow densities does this calculator use?
Approximate published density figures in pounds per cubic foot: fresh snow 4, settled snow 15.6, wind-packed snow 23, wet or slushy snow 35, and ice 57. Real snow density varies with temperature and moisture content, so treat these as reasonable planning estimates, not precise measurements.
Why does roof pitch affect the total weight?
A steeper roof has more actual surface area covering the same building footprint, so the calculator divides the footprint area by the cosine of the pitch angle to get the sloped roof area before multiplying by the load per square foot.
Does this replace my local building code snow load requirement?
No. Building codes such as ASCE 7 in the United States specify a required ground or roof snow load for a given location based on historical weather data, independent of how much snow is currently on a roof. This calculator estimates the load from snow that is actually present; always design for the local code-required snow load, not just current conditions.
Spot a mistake? Tell us what's wrong.
Request a calculator. The most-requested ones get built first in our monthly batch.
Request a calculatorWant this calculator on your website?
Embed the Roof Snow Load Calculator on any site — no code needed. Customize colors, remove branding, and track usage.
