Engine RPM Chart for Proper Boat Propeller Sizing

Note: WOT (wide open throttle) measurements are made with a tuned engine, a clean boat hull, loaded with an average boat load, and the propeller clean and undamaged.

Learn all about boat propeller fit with our Boat Propeller Fit Guide.

Johnson RPM Chart
HP/Model WOT RPMGear Ratio
24000-50001.85
3.34500-55001.85
3.54500-55001.85
44500-55002.08
54600-54001.92
64500-55002.23
85000-60002.23
9.95000-60002.23
155000-60002.23
254500-55002.15
255200-58002.15
305200-58002.15
355200-58002.15
404500-55002.23
504500-55002.23
605000-60002.23
705000-60002.23
904500-55002.00
90 OP4500-55002.00
1154500-55002.00
115 OP4500-55002
1355000-60002.25
135 OP5000-60002.25
1504500-55001.86
150 OP4500-55001.86
1754500-55001.86
175 OP4500-55001.86
2005000-60001.86
200 OP5000-60001.86
2255000-60001.86
225 OP5000-60001.86
225 HO5000-60001.86
250 OP5000-60001.86
   
   
   
   
   
Nissan/Tohatsu RPM Chart
HP/Model WOT RPMGear Ratio
2.53800-52001.85
3.54300-52002.15
4 4-Stroke4500-55002.15
54500-55002.15
5 4-Stroke4500-55002.15
6 4-Stroke5500-60002.15
84500-55002.08
9.85000-58002.08
9.9 4-Stroke4500-55002.08
15 4-Stroke5000-60002.15
18 4 stroke5000-60002.15
25 4 stroke5000-60001.92
30 4 stroke5250-62501.92
404500-55001.85
505000-57001.85
505000-57001.85
50 Orbital5000-57001.85
704900-56002.3
905000-55002.00
1155200-57002.00
1205200-57002.00
1405200-57002.00
 

Mercruiser RPM Chat
HP/Model WOT RPMGear Ratio
3.0 L 1354400-48002.00 A1
4.3 L 1904400-48001.81 A1
4.3 LH 2054400-48001.62 A1
4.3 LEF2104400-48001.62 A1
5.0 L 2204400-48001.62 A1
5.0 L 2204400-48001.65 B1
5.0 LEFI 2404400-48001.47 A1
5.0 LEFI 2404400-48001.65 B1
5.7 L250 4400-48001.47 A1
5.7 L250 4400-48001.65 B1
5.7 L EFI 2604400-48001.47 A1
5.7 L EFI 2604400-48001.65 B1
350 Mag MPI 3004600-50001.47A1
350 Mag MPI 3004600-50001.50 B1
350 Horizon 3004600-50001.47A1
350 Horizon 3004600-50001.50 B1
MX 6.2 L MPI 3204800-52001.65 B1
496 Mag 3754400-48001.5 B1
496 Mag HK 4254600-50001.5 B1
  
Mercury Verado RPM Chart
HP/Model WOT RPMGear Ratio
1355200-64002.08
1505800-64002.08
1755800-64002.08
2005800-64001.85
2255800-64001.85
2505800-64001.85
2755800-64001.85
Mercury RPM Chart
HP/Model WOT RPMGear Ratio
2.54000-50001.85
3.34500-55002.15
44500-55002.15
4 4-Stroke4500-55002.15
54000-50002.15
5 4-Stroke4500-55002.15
64000-50002
6 4-Stroke5000-60002.15
84500-55002
9.95000-60002
9.9 4-Stroke4500-55002.01
9.9 Big Foot4500-55002.42
9.9 Saltwater4500-55002.42
155000-60002
15 4-Stroke4500-55002
15 Big Foot4500-55002.42
204500-55002.25
25 Classic5000-60002.25
25 Big Foot5500-60002.4
304500-55002
30 4-Stroke5500-60002
40 Classic4500-55002
405000-55001.83
40 4-Stroke5500-60002
40 Big Foot5500-60002.3
50 Classic5000-55001.83
50 4-Stroke5500-60001.83
50 Big Foot5500-60002.3
60 Classic 5000-55001.64
60 Big Foot5000-55002.3
60 4-Stroke5500-60001.83
60 Big Foot5500-60002.3
75 Classic4750-52502.3
75 4-Stroke5000-60002.3
90 Classic5000-55002.3
90 SW5000-55002.3
90 4-Stroke5000-60002.3
90 4-Stroke SW5000-60002.3
1154750-52502.07
115 4-Stroke5000-60002.07
115 4-Stroke SW5000-60002.07
125 Classic4750-52502.07
125 SW4750-52502.07
135 OptiMax5000-56002
135 SW OptiMax5000-56002
150 XR65000-56001.87
150 SW5000-56001.87
150 EFI5000-56001.87
150 SW EFI5000-56001.87
150 OptiMax5000-56001.87
150 OptiMax5000-56001.87
175 EFI5000-56001.87
175 OptiMax5250-57501.87
200 Classic5000-56001.87
200 SW5000-56001.87
200 EFI5000-58001.87
200 EFI SW5000-56001.87
200 OptiMax5000-57501.75
225 EFI5000-58001.75
225 EFI SW5000-55001.75
225 OptiMax5000-57501.75
225 XL OptiMax SW5000-57501.75
250 XL EFI SW5000-58001.75
300XS Opti Max5400-5800Remote
 
Volvo RPM Chart
HP/Model WOT RPMGear Ratio
3.0 GS 13546001.97SX
4.3 GL 19048001.66SX
4.3 Gi 20548001.66SX
5.0 GL 22048001.51SX
5.0 Gi 50001.60SX
5.7 GS 25048001.43SX
5.7 Gsi 28050001.43SX
5.7 Gsi 31550001.43SX
5.8 Fl44001.51SX
7.4 GL46001.43SX
7.4Gi46001.43SX
AD31L 12238002.30SX
AP31P 14139002.30SX

Suzuki RPM Chart
HP/Model WOT RPMGear Ratio
DF2.55250-57502.15
44000-50001.92
64750-57501.92
DF9.94500-55002.08
DF155400-60002.08
DF254700-53002.09
DF25R4700-53002.09
DF305500-61002.09
DF405200-58002.27
DF505900-65002.27
DF604700-53002.42
DF705200-58002.42
DT855000-56002.08
DF90 4500-55002.59
DT1005250-57502.08
1155500-60002.08
DF 1155000-60002.59
DF1405600-62002.59
DF1505200-60002.50
DF1755500-61002.50
DF2005000-60002.29
DF2255000-60002.29
DF2505500-61002.29
DF3005700-63002.08

Honda RPM Chart
HP/Model WOT RPMGear Ratio
25000-60002.11
54500-55002.11
84500-55002.33
9.95000-60002.33
154500-55002.08
255000-66002.08
305000-60002.08
405000-60002.08
505500-60002.08
75/75EFI5000-60002.33
905000-60002.33
90EFI5300-63002.33
1155000-60002.00
1355000-60002.14
1505000-60002.14
2005000-60001.86
2255000-60001.86

Yamaha RPM Chart
HP/Model WOT RPMGear Ratio
24000-50002.08
34500-55002.08
4 4-Stroke4000-50002.08
54500-55002.08
6 4-Stroke4500-55002.08
84500-55002.08
8 4-Stroke5000-60002.08
8 4-Stroke HT5000-60002.92
9.94500-55002.08
9.9 4-Stroke4500-55002.92
9.9 4-Stroke HT4000-50002.92
154500-55002.08
15 4-Stroke4500-55002.08
254500-55002.08
254500-55001.85
25 4-Stroke5500-60002.08
25 4-Stroke HT5000-60002.41
304500-55001.85
30 4-Stroke5000-60002
404500-55001.85
C404500-55001.85
F40 4-Stroke5000-60002
504500-55001.85
C504500-55001.85
F50 4-Stroke5000-60001.85
T50 HT5000-60002.33
604500-55002.33
C604500-55002.33
705000-60002.33
C705000-60002.33
F80 4-Stroke5000-60002.31
904500-55002
F904500-55002
F100 4-Stroke5000-60002.31
1154500-55002
F115 4-Stroke5000-60002.15
1305000-60002
150 SW EFI4500-55001.86
150 HPDI4500-55001.86
Vmax 150 HPDI4500-55002
V Max 150 TRP4500-55002
V Max 1504500-55002
V Max 150 EFI4500-55002
175 HPDI4500-55001.86
V Max 1754500-55001.86
200 SW EFI4500-55001.86
200 HPDI4500-55001.86
V Max 200 HPDI4500-55001.86
V Max 200 3.1 EFI4500-55001.81
V Max 225 3.1 EFI4500-55001.81
225 SW EFI4500-55001.81
V Max 250 3.14500-55001.81
250 SW EFI4500-55001.81
300 V Max HPDI5000-60001.75
300 HPDI4650-56501.75