Section Modulus Converter

Convert section modulus units including cubic inches, cubic feet, cubic millimeters, cubic centimeters, cubic meters, cubic yards, and more.

Convert Section Modulus

1 cubic inch = 16387.064 cubic millimeters
Your converted section modulus result will appear here.

Common section modulus conversions

Cubic inches to cubic millimeters:
1 in³ = 16,387.064 mm³

Cubic centimeters to cubic millimeters:
1 cm³ = 1,000 mm³

Cubic feet to cubic inches:
1 ft³ = 1,728 in³

Cubic meters to cubic millimeters:
1 m³ = 1,000,000,000 mm³

Where section modulus conversions are used

Section modulus conversions are useful for beam design, bending stress checks, steel beam tables, wood member sizing, mechanical shafts, structural shapes, frame design, and section property comparisons.

Use this converter when comparing metric and U.S. customary section modulus values.

What your section modulus result means

Your result shows the entered section modulus converted from the starting unit into the selected ending unit. The calculator also shows the conversion rate used so you can verify the calculation.

For engineering and structural design, make sure the section modulus unit matches your bending moment unit, stress unit, section table, design code, or beam calculation.

Section modulus converter tips

Frequently asked questions

What is section modulus?

Section modulus is a geometric property used to estimate bending stress in a member.

What units are used for section modulus?

Section modulus uses cubic length units, such as in³, mm³, cm³, ft³, or m³.

How many cubic millimeters are in one cubic inch?

One cubic inch equals 16,387.064 cubic millimeters.

Is section modulus the same as moment of inertia?

No. Section modulus is moment of inertia divided by the distance to the extreme fiber.

Can I convert negative section modulus values?

This converter is designed for section modulus magnitude conversions, so it uses non-negative values.