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.

Evinrude RPM Chart
HP/Model	WOT RPM	Gear Ratio
5 4-Stroke	5500-6500	2.23
6 4-Stroke	5500-6500	2.23
8 4-Stroke	5000-6000	2.42
9.9 4-Stroke	5000-6000	2.42
9.9HT 4-Stroke	4000-5000	2.42
15 4-Stroke	5000-6000	2.42
25 4-Stroke	4700-5300	2.09
30 4-Stroke	5200-5800	2.09
40 4-Stroke	5200-5800	2.27
50 4-Stroke	5900-6500	2.27
70 4-Stroke	5200-5800	2.42
75 Ficht	4750-5250	2.00
90 Ficht	5250-5750	2.00
115 Ficht	5250-5750	2.00
135 Ficht	4750-5250	1.86
150 Ficht	4750-5250	1.86
175 Ficht	5250-5750	1.86
200 Ficht	5500-6000	1.86
225 Ficht	5500-6000	1.86
225 Ficht HO	5500-6000	1.86
250 Ficht	5500-6000	1.86

Evinrude E-Tec RPM Chart
HP/Model	WOT RPM	Gear Ratio
40	5000-6000	2.67
50	5500-6000	2.67
60	5500-6000	2.67
75	4500-5500	2.01
90	4500-5500	2.01/2.25
115	4500-5500	2.01/2.25
130	5000-6000	2.01/2.25
150 H.O.	4750-5750	1.86/1.85
150	4750-5750	1.86
175	4750-5750	1.86/1.85
200	4750-5750	1.86/1.85
200 H.O.	4500-5800	1.86/1.85
225	4500-5800	1.85
225 H.O.	4500-5800	1.86
250	4500-5800	1.85

Johnson RPM Chart
HP/Model	WOT RPM	Gear Ratio
2	4000-5000	1.85
3.3	4500-5500	1.85
3.5	4500-5500	1.85
4	4500-5500	2.08
5	4600-5400	1.92
6	4500-5500	2.23
8	5000-6000	2.23
9.9	5000-6000	2.23
15	5000-6000	2.23
25	4500-5500	2.15
25	5200-5800	2.15
30	5200-5800	2.15
35	5200-5800	2.15
40	4500-5500	2.23
50	4500-5500	2.23
60	5000-6000	2.23
70	5000-6000	2.23
90	4500-5500	2.00
90 OP	4500-5500	2.00
115	4500-5500	2.00
115 OP	4500-5500	2
135	5000-6000	2.25
135 OP	5000-6000	2.25
150	4500-5500	1.86
150 OP	4500-5500	1.86
175	4500-5500	1.86
175 OP	4500-5500	1.86
200	5000-6000	1.86
200 OP	5000-6000	1.86
225	5000-6000	1.86
225 OP	5000-6000	1.86
225 HO	5000-6000	1.86
250 OP	5000-6000	1.86





Nissan/Tohatsu RPM Chart
HP/Model	WOT RPM	Gear Ratio
2.5	3800-5200	1.85
3.5	4300-5200	2.15
4 4-Stroke	4500-5500	2.15
5	4500-5500	2.15
5 4-Stroke	4500-5500	2.15
6 4-Stroke	5500-6000	2.15
8	4500-5500	2.08
9.8	5000-5800	2.08
9.9 4-Stroke	4500-5500	2.08
15 4-Stroke	5000-6000	2.15
18 4 stroke	5000-6000	2.15
25 4 stroke	5000-6000	1.92
30 4 stroke	5250-6250	1.92
40	4500-5500	1.85
50	5000-5700	1.85
50	5000-5700	1.85
50 Orbital	5000-5700	1.85
70	4900-5600	2.3
90	5000-5500	2.00
115	5200-5700	2.00
120	5200-5700	2.00
140	5200-5700	2.00

Mercruiser RPM Chat
HP/Model	WOT RPM	Gear Ratio
3.0 L 135	4400-4800	2.00 A1
4.3 L 190	4400-4800	1.81 A1
4.3 LH 205	4400-4800	1.62 A1
4.3 LEF210	4400-4800	1.62 A1
5.0 L 220	4400-4800	1.62 A1
5.0 L 220	4400-4800	1.65 B1
5.0 LEFI 240	4400-4800	1.47 A1
5.0 LEFI 240	4400-4800	1.65 B1
5.7 L250	4400-4800	1.47 A1
5.7 L250	4400-4800	1.65 B1
5.7 L EFI 260	4400-4800	1.47 A1
5.7 L EFI 260	4400-4800	1.65 B1
350 Mag MPI 300	4600-5000	1.47A1
350 Mag MPI 300	4600-5000	1.50 B1
350 Horizon 300	4600-5000	1.47A1
350 Horizon 300	4600-5000	1.50 B1
MX 6.2 L MPI 320	4800-5200	1.65 B1
496 Mag 375	4400-4800	1.5 B1
496 Mag HK 425	4600-5000	1.5 B1

Mercury Verado RPM Chart
HP/Model	WOT RPM	Gear Ratio
135	5200-6400	2.08
150	5800-6400	2.08
175	5800-6400	2.08
200	5800-6400	1.85
225	5800-6400	1.85
250	5800-6400	1.85
275	5800-6400	1.85
Mercury RPM Chart
HP/Model	WOT RPM	Gear Ratio
2.5	4000-5000	1.85
3.3	4500-5500	2.15
4	4500-5500	2.15
4 4-Stroke	4500-5500	2.15
5	4000-5000	2.15
5 4-Stroke	4500-5500	2.15
6	4000-5000	2
6 4-Stroke	5000-6000	2.15
8	4500-5500	2
9.9	5000-6000	2
9.9 4-Stroke	4500-5500	2.01
9.9 Big Foot	4500-5500	2.42
9.9 Saltwater	4500-5500	2.42
15	5000-6000	2
15 4-Stroke	4500-5500	2
15 Big Foot	4500-5500	2.42
20	4500-5500	2.25
25 Classic	5000-6000	2.25
25 Big Foot	5500-6000	2.4
30	4500-5500	2
30 4-Stroke	5500-6000	2
40 Classic	4500-5500	2
40	5000-5500	1.83
40 4-Stroke	5500-6000	2
40 Big Foot	5500-6000	2.3
50 Classic	5000-5500	1.83
50 4-Stroke	5500-6000	1.83
50 Big Foot	5500-6000	2.3
60 Classic	5000-5500	1.64
60 Big Foot	5000-5500	2.3
60 4-Stroke	5500-6000	1.83
60 Big Foot	5500-6000	2.3
75 Classic	4750-5250	2.3
75 4-Stroke	5000-6000	2.3
90 Classic	5000-5500	2.3
90 SW	5000-5500	2.3
90 4-Stroke	5000-6000	2.3
90 4-Stroke SW	5000-6000	2.3
115	4750-5250	2.07
115 4-Stroke	5000-6000	2.07
115 4-Stroke SW	5000-6000	2.07
125 Classic	4750-5250	2.07
125 SW	4750-5250	2.07
135 OptiMax	5000-5600	2
135 SW OptiMax	5000-5600	2
150 XR6	5000-5600	1.87
150 SW	5000-5600	1.87
150 EFI	5000-5600	1.87
150 SW EFI	5000-5600	1.87
150 OptiMax	5000-5600	1.87
150 OptiMax	5000-5600	1.87
175 EFI	5000-5600	1.87
175 OptiMax	5250-5750	1.87
200 Classic	5000-5600	1.87
200 SW	5000-5600	1.87
200 EFI	5000-5800	1.87
200 EFI SW	5000-5600	1.87
200 OptiMax	5000-5750	1.75
225 EFI	5000-5800	1.75
225 EFI SW	5000-5500	1.75
225 OptiMax	5000-5750	1.75
225 XL OptiMax SW	5000-5750	1.75
250 XL EFI SW	5000-5800	1.75
300XS Opti Max	5400-5800	Remote

Volvo RPM Chart
HP/Model	WOT RPM	Gear Ratio
3.0 GS 135	4600	1.97SX
4.3 GL 190	4800	1.66SX
4.3 Gi 205	4800	1.66SX
5.0 GL 220	4800	1.51SX
5.0 Gi	5000	1.60SX
5.7 GS 250	4800	1.43SX
5.7 Gsi 280	5000	1.43SX
5.7 Gsi 315	5000	1.43SX
5.8 Fl	4400	1.51SX
7.4 GL	4600	1.43SX
7.4Gi	4600	1.43SX
AD31L 122	3800	2.30SX
AP31P 141	3900	2.30SX

Suzuki RPM Chart
HP/Model	WOT RPM	Gear Ratio
DF2.5	5250-5750	2.15
4	4000-5000	1.92
6	4750-5750	1.92
DF9.9	4500-5500	2.08
DF15	5400-6000	2.08
DF25	4700-5300	2.09
DF25R	4700-5300	2.09
DF30	5500-6100	2.09
DF40	5200-5800	2.27
DF50	5900-6500	2.27
DF60	4700-5300	2.42
DF70	5200-5800	2.42
DT85	5000-5600	2.08
DF90	4500-5500	2.59
DT100	5250-5750	2.08
115	5500-6000	2.08
DF 115	5000-6000	2.59
DF140	5600-6200	2.59
DF150	5200-6000	2.50
DF175	5500-6100	2.50
DF200	5000-6000	2.29
DF225	5000-6000	2.29
DF250	5500-6100	2.29
DF300	5700-6300	2.08

Honda RPM Chart
HP/Model	WOT RPM	Gear Ratio
2	5000-6000	2.11
5	4500-5500	2.11
8	4500-5500	2.33
9.9	5000-6000	2.33
15	4500-5500	2.08
25	5000-6600	2.08
30	5000-6000	2.08
40	5000-6000	2.08
50	5500-6000	2.08
75/75EFI	5000-6000	2.33
90	5000-6000	2.33
90EFI	5300-6300	2.33
115	5000-6000	2.00
135	5000-6000	2.14
150	5000-6000	2.14
200	5000-6000	1.86
225	5000-6000	1.86

Yamaha RPM Chart
HP/Model	WOT RPM	Gear Ratio
2	4000-5000	2.08
3	4500-5500	2.08
4 4-Stroke	4000-5000	2.08
5	4500-5500	2.08
6 4-Stroke	4500-5500	2.08
8	4500-5500	2.08
8 4-Stroke	5000-6000	2.08
8 4-Stroke HT	5000-6000	2.92
9.9	4500-5500	2.08
9.9 4-Stroke	4500-5500	2.92
9.9 4-Stroke HT	4000-5000	2.92
15	4500-5500	2.08
15 4-Stroke	4500-5500	2.08
25	4500-5500	2.08
25	4500-5500	1.85
25 4-Stroke	5500-6000	2.08
25 4-Stroke HT	5000-6000	2.41
30	4500-5500	1.85
30 4-Stroke	5000-6000	2
40	4500-5500	1.85
C40	4500-5500	1.85
F40 4-Stroke	5000-6000	2
50	4500-5500	1.85
C50	4500-5500	1.85
F50 4-Stroke	5000-6000	1.85
T50 HT	5000-6000	2.33
60	4500-5500	2.33
C60	4500-5500	2.33
70	5000-6000	2.33
C70	5000-6000	2.33
F80 4-Stroke	5000-6000	2.31
90	4500-5500	2
F90	4500-5500	2
F100 4-Stroke	5000-6000	2.31
115	4500-5500	2
F115 4-Stroke	5000-6000	2.15
130	5000-6000	2
150 SW EFI	4500-5500	1.86
150 HPDI	4500-5500	1.86
Vmax 150 HPDI	4500-5500	2
V Max 150 TRP	4500-5500	2
V Max 150	4500-5500	2
V Max 150 EFI	4500-5500	2
175 HPDI	4500-5500	1.86
V Max 175	4500-5500	1.86
200 SW EFI	4500-5500	1.86
200 HPDI	4500-5500	1.86
V Max 200 HPDI	4500-5500	1.86
V Max 200 3.1 EFI	4500-5500	1.81
V Max 225 3.1 EFI	4500-5500	1.81
225 SW EFI	4500-5500	1.81
V Max 250 3.1	4500-5500	1.81
250 SW EFI	4500-5500	1.81
300 V Max HPDI	5000-6000	1.75
300 HPDI	4650-5650	1.75