Professional Body Filler Calculator

Mix with confidence. Get a realistic, weight-based estimate for the exact amount of body filler and hardener your repair job requires.

1. Describe the Damage

2. Your Estimated Mix

Estimated Filler Needed

0 g


Required Hardener (at 2.5% ratio)

This is a professional estimate by weight. Always mix on a clean, non-absorbent surface. Incompatible combinations will show an error.