Winch Capacity Calculator
Calculate the pulling power you need and find the right Pierce winch for the job.
Quick Rule: Multiply your vehicle's GVWR by 1.5× to find the minimum winch capacity. Use GVWR (found on the door sticker), not curb weight.
Using Snatch Block / Pulley
Force Breakdown
Rolling Resistance
0
Gradient Resistance
0
Damage Resistance
0
Raw Pull Required
0 lbs
Required Capacity
GVWR × 1.5
Minimum Winch Capacity
9,000 lbs
Pro Tips
▸ Winch capacity decreases 10–20% per additional rope layer on the drum. Calculate based on the outer layer.
▸ Snatch blocks multiply pulling force but halve line speed — great for stuck vehicles.
▸ For righting a rolled vehicle, calculate uprighting force separately before adding pull resistance.
▸ Never exceed a winch's rated capacity. When in doubt, size up.
Calculations are estimates for general guidance only. Always consult manufacturer specifications for your application.
