Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Civil
Culvert Design Calculator
Size a circular or box culvert to pass a design stormwater discharge using Manning's equation. Essential for highway engineers, drainage designers, and land developers ensuring roads stay clear during storm events.
Fill in the required fields to see your result.
Civil
Pipe Flow Rate Calculator
Determine the flow rate of water through a pipe using the Hazen-Williams equation. Use this when designing or analyzing water distribution systems, irrigation lines, or municipal supply networks.
Fill in the required fields to see your result.
Key differences
| Culvert Design Calculator | Pipe Flow Rate Calculator | |
|---|---|---|
| Category | Civil | Civil |
| Inputs required | 5 | 4 |
| Result | Required Culvert Diameter (m) | Flow Rate (gpm) |
| What it does | Size a circular or box culvert to pass a design stormwater discharge using Manning's equation. Essential for highway engineers, drainage designers, and land developers ensuring roads stay clear during storm events. | Determine the flow rate of water through a pipe using the Hazen-Williams equation. Use this when designing or analyzing water distribution systems, irrigation lines, or municipal supply networks. |