Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Civil
Pavement Thickness Design Calculator
Estimate the required pavement thickness for roads or parking lots based on traffic volume, subgrade strength, and design life. Essential during roadway design to prevent premature structural failure.
Fill in the required fields to see your result.
Civil
Flexible Pavement Thickness Calculator
Compute the required flexible pavement structural number using the AASHTO 1993 empirical design method. Used by pavement engineers to size asphalt road sections for a given traffic load, subgrade strength, and reliability level.
Fill in the required fields to see your result.
Key differences
| Pavement Thickness Design Calculator | Flexible Pavement Thickness Calculator | |
|---|---|---|
| Category | Civil | Civil |
| Inputs required | 4 | 4 |
| Result | Required Thickness (inches) | Structural Number Required (SN) |
| What it does | Estimate the required pavement thickness for roads or parking lots based on traffic volume, subgrade strength, and design life. Essential during roadway design to prevent premature structural failure. | Compute the required flexible pavement structural number using the AASHTO 1993 empirical design method. Used by pavement engineers to size asphalt road sections for a given traffic load, subgrade strength, and reliability level. |