| Current Intensity (CI) Number | Mean Wind Speed (knots) | Mean Wind Speed (mph) | MSLP in Millibars (Atlantic) | MSLP in Millibars (NW Pacific) | Saffir-Simpson Category (Approximate) |
|---|---|---|---|---|---|
| 1 | 25 kts | 29 mph | |||
| 1.5 | 25 kts | 29 mph | |||
| 2 | 30 kts | 35 mph | 1009 mb | 1000 mb | |
| 2.5 | 35 kts | 40 mph | 1005 mb | 997 mb | |
| 3 | 45 kts | 52 mph | 1000 mb | 991 mb | |
| 3.5 | 55 kts | 63 mph | 994 mb | 984 mb | |
| 4 | 65 kts | 75 mph | 987 mb | 976 mb | 1 (64-82 kts) |
| 4.5 | 77 kts | 89 mph | 979 mb | 966 mb | 1 (64-82 kts); 2 (83-95 kts) |
| 5 | 90 kts | 104 mph | 970 mb | 954 mb | 2 (83-95 kts); 3 (96-112 kts) |
| 5.5 | 102 kts | 117 mph | 960 mb | 941 mb | 3 (96-112 kts) |
| 6 | 115 kts | 132 mph | 948 mb | 927 mb | 4 (113-136 kts) |
| 6.5 | 127 kts | 146 mph | 935 mb | 914 mb | 4 (113-136 kts) |
| 7 | 140 kts | 161 mph | 921 mb | 898 mb | 5 (137 kts or higher) |
| 7.5 | 155 kts | 178 mph | 906 mb | 879 mb | 5 (137 kts or higher) |
| 8 | 170 kts | 196 mph | 890 mb | 858 mb | 5 (137 kts or higher) |