Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Engineering
HVAC Duct Sizing Calculator
Calculate the required diameter or dimensions of HVAC ducts based on air flow rate and design velocity. Use this when designing ventilation systems to balance air delivery with noise and pressure loss constraints.
Fill in the required fields to see your result.
Engineering
Beam Deflection Calculator
Calculate the maximum deflection of a simply supported beam under a point load, uniformly distributed load (UDL), or end load using standard Euler-Bernoulli beam theory. Use it to size beams in structural design or to verify deflection stays within serviceability limits (typically L/250 or L/360).
Fill in the required fields to see your result.
Key differences
| HVAC Duct Sizing Calculator | Beam Deflection Calculator | |
|---|---|---|
| Category | Engineering | Engineering |
| Inputs required | 4 | 5 |
| Result | Duct Dimension (inches) | Maximum Deflection (m) |
| What it does | Calculate the required diameter or dimensions of HVAC ducts based on air flow rate and design velocity. Use this when designing ventilation systems to balance air delivery with noise and pressure loss constraints. | Calculate the maximum deflection of a simply supported beam under a point load, uniformly distributed load (UDL), or end load using standard Euler-Bernoulli beam theory. Use it to size beams in structural design or to verify deflection stays within serviceability limits (typically L/250 or L/360). |