FEPA P-grade to micrometers
Type a value in grit to get it in µm instantly.
68µm
That's about the same as P220 paper before finishing.
Convert the other way: µm to grit
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 grit 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: P220 grit = 68 µm.
Every unit
That grit in every standard
Tables
grit to µm conversion table
| grit | µm |
|---|---|
| P40 grit | 425 µm |
| P60 grit | 269 µm |
| P80 grit | 201 µm |
| P100 grit | 162 µm |
| P120 grit | 125 µm |
| P150 grit | 100 µm |
| P180 grit | 82 µm |
| P220 grit | 68 µm |
| P240 grit | 58.5 µm |
| P320 grit | 46.2 µm |
| P400 grit | 35 µm |
| P600 grit | 25.8 µm |
| P800 grit | 21.8 µm |
| P1000 grit | 18.3 µm |
| P1500 grit | 12.6 µm |
| P2000 grit | 10.3 µm |
µm to grit conversion table
| µm | grit |
|---|---|
| 10.3 µm | P2000 grit |
| 12.6 µm | P1500 grit |
| 18.3 µm | P1000 grit |
| 21.8 µm | P800 grit |
| 25.8 µm | P600 grit |
| 35 µm | P400 grit |
| 46.2 µm | P320 grit |
| 58.5 µm | P240 grit |
| 68 µm | P220 grit |
| 82 µm | P180 grit |
| 100 µm | P150 grit |
| 125 µm | P120 grit |
| 162 µm | P100 grit |
| 201 µm | P80 grit |
| 269 µm | P60 grit |
| 425 µm | P40 grit |
Quick answers
Quick answers
- How many µm is P220 grit?
- P220 grit is 68 µm.
The units
About these units
FEPA P-grade (grit)
The European grade printed with a P: P120, P400.
Micrometers (µm)
The average particle size.
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