Welding Calculator

Find fillet weld throat and area.

Fillet leg size

Weld length

Effective throat 4.243

Weld cross-section area (mm²) 18

Formula: throat = leg × 0.707 ; area = 0.5 × leg²

Step-by-step with your numbers:

1. Values used:

2. Fillet leg size = 6

3. Weld length = 100

5. Effective throat = 4.243

6. Weld cross-section area = 18mm²

Did we solve your problem today?

Find a fillet weld's effective throat and cross-sectional area.

The math behind it

throat = leg × 0.707 (since it's the leg of an isosceles right triangle). Area = ½ × leg².

6 mm leg → throat 4.24 mm, area 18 mm².

Volume?

Multiply area × weld length for the deposited metal volume.