Free tools
Calculators, drills and checkers you can use without signing up.
Each tool states its own method and sources on its page.
- Remaining life and inspection interval calculator, with the method explained
- Corrosion rate calculator: short-term and long-term rates
- Static head calculator: liquid pressure between two elevations
- MAWP and minimum thickness calculator: shells and 2:1 heads
- Hydrotest pressure calculator: UG-99 and UG-100 test pressure