CAMI / ANSI grit to micrometers
Type a value in CAMI to get it in µm instantly.
66µm
That's 1.43× as coarse as P320 paper between coats, while P220 paper before finishing is 1.03× coarser.
Convert the other way: µm to CAMI
What it means
How coarse is that grit?
Average particle sizes from FEPA (ISO 6344), ANSI B74.12/B74.18 and JIS R6001. Brands and bonds vary; treat values between listed grits as estimates.
The math
How to convert CAMI to µm
Grit scales are tables: P220 = 68 µm = CAMI 220, but P1000 = 18.3 µm ≈ CAMI 600. Between listed grits the size is interpolated.
Example: 220 CAMI = 66 µm.
Every unit
That grit in every standard
Tables
CAMI to µm conversion table
| CAMI | µm |
|---|---|
| 40 CAMI | 428 µm |
| 60 CAMI | 268 µm |
| 76 CAMI | 201.6 µm |
| 92 CAMI | 161.4 µm |
| 113 CAMI | 124.75 µm |
| 141 CAMI | 99.9 µm |
| 172 CAMI | 82 µm |
| 213 CAMI | 68.1 µm |
| 232 CAMI | 58.5 µm |
| 272 CAMI | 46.3 µm |
| 326 CAMI | 34.92 µm |
| 383 CAMI | 25.81 µm |
| 446 CAMI | 21.806 µm |
| 538 CAMI | 18.294 µm |
| 779 CAMI | 12.599 µm |
| 927 CAMI | 10.295 µm |
µm to CAMI conversion table
| µm | CAMI |
|---|---|
| 10.3 µm | 927 CAMI |
| 12.6 µm | 779 CAMI |
| 18.3 µm | 538 CAMI |
| 21.8 µm | 446 CAMI |
| 25.8 µm | 383 CAMI |
| 35 µm | 326 CAMI |
| 46.2 µm | 272 CAMI |
| 58.5 µm | 232 CAMI |
| 68 µm | 213 CAMI |
| 82 µm | 172 CAMI |
| 100 µm | 141 CAMI |
| 125 µm | 113 CAMI |
| 162 µm | 92 CAMI |
| 201 µm | 76 CAMI |
| 269 µm | 60 CAMI |
| 425 µm | 40 CAMI |
Quick answers
Quick answers
- How many µm is 220 CAMI?
- 220 CAMI is 66 µm.
The units
About these units
CAMI / ANSI grit (CAMI)
The US grade, printed without a P.
Micrometers (µm)
The average particle size.
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