Nominal inches to centimeters
Type a value in nominal to get it in cm instantly.
13.97cm
That's 1.57× as wide as a 4×4 post, while a 2×10 joist’s depth is 1.68× wider.
What it means
How big is that board really?
Dry, surfaced softwood dimensions (PS 20). Convert each dimension separately: a 2×6 is 1½ by 5½ in. Hardwoods and rough-sawn lumber differ.
The math
How to convert nominal to cm
Up to 6 in nominal, actual = nominal − ½ in; from 8 in, actual = nominal − ¾ in.
Example: 6 nominal = 13.97 cm.
Every unit
That dimension in every unit
Tables
nominal to cm conversion table
| nominal | cm |
|---|---|
| 1 nominal | 1.905 cm |
| 2 nominal | 3.81 cm |
| 3 nominal | 6.35 cm |
| 4 nominal | 8.89 cm |
| 5 nominal | 11.43 cm |
| 6 nominal | 13.97 cm |
| 8 nominal | 18.415 cm |
| 10 nominal | 23.495 cm |
| 12 nominal | 28.575 cm |
| 14 nominal | 33.655 cm |
| 16 nominal | 38.735 cm |
cm to nominal conversion table
| cm | nominal |
|---|---|
| 3.81 cm | 2 nominal |
| 6.35 cm | 3 nominal |
| 8.89 cm | 4 nominal |
| 11.4 cm | 5 nominal |
| 14 cm | 6 nominal |
| 18.4 cm | 8 nominal |
| 23.5 cm | 10 nominal |
| 28.6 cm | 12 nominal |
| 33.7 cm | 14 nominal |
| 38.7 cm | 16 nominal |
Quick answers
Quick answers
- How many cm is 1 nominal?
- 1 nominal is 1.905 cm.
- How many cm is 10 nominal?
- 10 nominal is 23.495 cm.
- How many cm is 6 nominal?
- 6 nominal is 13.97 cm.
The units
About these units
Nominal inches (nominal)
The name of the dimension: the 4 in 2×4.
Centimeters (cm)
The real dimension in centimeters.
Keep going