Tiny Plumbing Calculators
Pipe, flow & pressure tools — fast.
A clean, practical calculator kit designed for plumbers and contractors. Get accurate results quickly without clutter.
- No ads (clean experience)
- Fast inputs, clear outputs
- Built for real job-site use
Included calculators
A focused set of the most-used plumbing calculations.
- Pipe Volume Calculator
- Flow Rate Calculator (GPM)
- Pressure Drop Estimator
- PSI ↔ GPM Conversions
- Pipe Size Reference
- Fitting Loss (basic)
Want a specific calculator added? Tell us.
Screenshots
Who it’s for
Made to be helpful whether you’re on the job or learning.
- Professional plumbers
- Contractors
- Apprentices
- DIY homeowners