| NOS/NIMA | IHO | Foreign NIMA Charts | |
|---|---|---|---|
| km | Kilometer(s) | km | |
| m | Meter(s) | m | |
| dm | Decimeter(s) | dm | |
| cm | Centimeter(s) | cm | |
| mm | Millimeter(s) | mm | |
| M, Mi, NMi, NM | Nautical mile(s) (1852m) or sea mile(s) | M | |
| cbl | Cable(s) length | ||
| ft | Foot/feet | ft | |
| fm, fms | Fathom(s) | ||
| h, hr | Hour | h | |
| m, min | Minute(s) of time | m | min |
| s, sec | Second(s) of time | s | sec |
| kn | Knot(s) | kn | |
| t | Ton(s) (metric ton equals 2,204.6 lbs) | t | |
| cd | Candela (new candle) | cd | |