Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Plumbing
Pipe Expansion Joint Calculator
Calculates how much a pipe will elongate or contract due to a temperature change, accounting for the thermal expansion coefficient of steel, copper, or aluminum. Essential for sizing expansion joints and loops in piping systems.
Fill in the required fields to see your result.
Plumbing
Pipe Flow Velocity Calculator
Calculates water velocity (in ft/s) inside a pipe from flow rate and pipe diameter, then checks whether it falls within code-acceptable limits for the selected application. Use it to avoid erosion, noise, or insufficient flow.
Fill in the required fields to see your result.
Key differences
| Pipe Expansion Joint Calculator | Pipe Flow Velocity Calculator | |
|---|---|---|
| Category | Plumbing | Plumbing |
| Inputs required | 3 | 2 |
| Result | Expansion (inches) | Flow Velocity (ft/s) |
| What it does | Calculates how much a pipe will elongate or contract due to a temperature change, accounting for the thermal expansion coefficient of steel, copper, or aluminum. Essential for sizing expansion joints and loops in piping systems. | Calculates water velocity (in ft/s) inside a pipe from flow rate and pipe diameter, then checks whether it falls within code-acceptable limits for the selected application. Use it to avoid erosion, noise, or insufficient flow. |