WeldKit: Welding Calculators

WeldKit is a practical welding calculator app built for fabricators, welders, and shop use.

Get fast, no-nonsense welding math and reference tools in one place. Start with the free MIG calculator, then unlock 7 more calculators with a one-time purchase. No subscription.

Whether you're in the shop, in the field, or setting up a machine for the first time, WeldKit helps you dial in settings faster and work with more confidence.

Included calculators:

• MIG Welding Calculator (Free)

• TIG Welding Calculator

• Stick Welding Calculator

• Flux-Core Calculator

• Plasma Cutting Calculator

• Heat Input Calculator

• Weld Cost Estimator

• Preheat Temperature Calculator

Built for real-world use:

• Fast, simple interface

• Imperial and metric support

• No accounts or logins required

• Designed for quick setup and jobsite use

• Built for speed — no fluff

Why WeldKit:

• Multiple welding calculators in one clean app

• Useful for fabricators, welders, and shop work

• Quick starting points for common welding setups

• Practical tools without clutter or wasted time

Unlock WeldKit Pro to get all 8 calculators with a one-time purchase.

Built by a fabricator, for fabricators.