convertimate Second moment of area

Inches to the fourth to centimeters to the fourth

Type a value in in⁴ to get it in cm⁴ instantly.

41,623,140cm⁴

That's 3.8× as stiff as a bridge girder — nothing on our list beats it. A solid square beam about 1,495 mm a side would be just as stiff.

What it means

How stiff is that section?

This is the area moment, about a stated axis. It is not the mass moment of inertia, which has units of kg·m² and belongs to spinning things.

The math

How to convert in⁴ to cm⁴

To convert inches to the fourth to centimeters to the fourth, multiply by 41.6231.

Example: 1,000,000 in⁴ × 41.6231 = 41,623,100 cm⁴.

In the other direction, 1 cm⁴ = 0.0240251 in⁴.

Every unit

Your value in every unit

Tables

in⁴ to cm⁴ conversion table

in⁴ to cm⁴ conversion table
in⁴cm⁴
1,000 in⁴41,623.1 cm⁴
10,000 in⁴416,231 cm⁴
100,000 in⁴4,162,310 cm⁴
1,000,000 in⁴41,623,100 cm⁴
10,000,000 in⁴416,231,000 cm⁴
100,000,000 in⁴4.162×10⁹ cm⁴
1×10⁹ in⁴4.162×10¹⁰ cm⁴
1×10¹⁰ in⁴4.162×10¹¹ cm⁴
cm⁴ to in⁴ conversion table
cm⁴ to in⁴ conversion table
cm⁴in⁴
1,000 cm⁴24.0251 in⁴
10,000 cm⁴240.251 in⁴
100,000 cm⁴2,402.51 in⁴
1,000,000 cm⁴24,025.1 in⁴
10,000,000 cm⁴240,251 in⁴
100,000,000 cm⁴2,402,510 in⁴
1×10⁹ cm⁴24,025,100 in⁴
1×10¹⁰ cm⁴240,251,000 in⁴

Quick answers

Quick answers

How many cm⁴ is 1 in⁴?
1 in⁴ is 41.6231 cm⁴.
How many cm⁴ is 10 in⁴?
10 in⁴ is 416.231 cm⁴.
How many cm⁴ is 1,000,000 in⁴?
1,000,000 in⁴ is 41,623,100 cm⁴.

The units

About these units

Inches to the fourth (in⁴)

The US unit. One in⁴ is 416,231 mm⁴.

Centimeters to the fourth (cm⁴)

What European steel section tables are printed in.

Learn more about stiffness units

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