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2012 Nissan 370Z 6 speed manual Gear Ratios Calculator, MPH, Top Speed

 


This calculator outputs the how fast the Nissan 370Z can go in each gear as calculated by the gear ratios, engine redline and tire size.
The ultimate top speed may be limted by the power, drag and aerodynamics of each individual car.

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Tire Size
(345/30/20)
/ -
OR
Tire Diameter
(inches)
 
Final Drive Ratio
Redline (RPM)
1st Gear
2nd Gear
3rd Gear
4th Gear
5th Gear
6th Gear
7th Gear
8th Gear

RPM 1st Gear 2nd Gear 3rd Gear 4th Gear 5th Gear 6th Gear 7th Gear 8th Gear
500 2.84 4.64 6.64 8.47 10.76 13.61 0 0
600 3.41 5.56 7.97 10.16 12.91 16.34 0 0
700 3.97 6.49 9.29 11.86 15.06 19.06 0 0
800 4.54 7.42 10.62 13.55 17.21 21.78 0 0
900 5.11 8.34 11.95 15.24 19.36 24.51 0 0
1000 5.68 9.27 13.28 16.94 21.51 27.23 0 0
1100 6.24 10.2 14.61 18.63 23.66 29.95 0 0
1200 6.81 11.13 15.93 20.33 25.81 32.68 0 0
1300 7.38 12.05 17.26 22.02 27.96 35.4 0 0
1400 7.95 12.98 18.59 23.71 30.12 38.12 0 0
1500 8.51 13.91 19.92 25.41 32.27 40.84 0 0
1600 9.08 14.84 21.25 27.1 34.42 43.57 0 0
1700 9.65 15.76 22.57 28.79 36.57 46.29 0 0
1800 10.22 16.69 23.9 30.49 38.72 49.01 0 0
1900 10.78 17.62 25.23 32.18 40.87 51.74 0 0
2000 11.35 18.54 26.56 33.88 43.02 54.46 0 0
2100 11.92 19.47 27.88 35.57 45.17 57.18 0 0
2200 12.49 20.4 29.21 37.26 47.32 59.9 0 0
2300 13.05 21.33 30.54 38.96 49.48 62.63 0 0
2400 13.62 22.25 31.87 40.65 51.63 65.35 0 0
2500 14.19 23.18 33.2 42.34 53.78 68.07 0 0
2600 14.76 24.11 34.52 44.04 55.93 70.8 0 0
2700 15.32 25.03 35.85 45.73 58.08 73.52 0 0
2800 15.89 25.96 37.18 47.43 60.23 76.24 0 0
2900 16.46 26.89 38.51 49.12 62.38 78.96 0 0
3000 17.03 27.82 39.84 50.81 64.53 81.69 0 0
3100 17.59 28.74 41.16 52.51 66.68 84.41 0 0
3200 18.16 29.67 42.49 54.2 68.84 87.13 0 0
3300 18.73 30.6 43.82 55.9 70.99 89.86 0 0
3400 19.3 31.52 45.15 57.59 73.14 92.58 0 0
3500 19.87 32.45 46.47 59.28 75.29 95.3 0 0
3600 20.43 33.38 47.8 60.98 77.44 98.03 0 0
3700 21 34.31 49.13 62.67 79.59 100.75 0 0
3800 21.57 35.23 50.46 64.36 81.74 103.47 0 0
3900 22.14 36.16 51.79 66.06 83.89 106.19 0 0
4000 22.7 37.09 53.11 67.75 86.04 108.92 0 0
4100 23.27 38.02 54.44 69.45 88.2 111.64 0 0
4200 23.84 38.94 55.77 71.14 90.35 114.36 0 0
4300 24.41 39.87 57.1 72.83 92.5 117.09 0 0
4400 24.97 40.8 58.43 74.53 94.65 119.81 0 0
4500 25.54 41.72 59.75 76.22 96.8 122.53 0 0
4600 26.11 42.65 61.08 77.91 98.95 125.25 0 0
4700 26.68 43.58 62.41 79.61 101.1 127.98 0 0
4800 27.24 44.51 63.74 81.3 103.25 130.7 0 0
4900 27.81 45.43 65.06 83 105.4 133.42 0 0
5000 28.38 46.36 66.39 84.69 107.56 136.15 0 0
5100 28.95 47.29 67.72 86.38 109.71 138.87 0 0
5200 29.51 48.21 69.05 88.08 111.86 141.59 0 0
5300 30.08 49.14 70.38 89.77 114.01 144.32 0 0
5400 30.65 50.07 71.7 91.46 116.16 147.04 0 0
5500 31.22 51 73.03 93.16 118.31 149.76 0 0
5600 31.78 51.92 74.36 94.85 120.46 152.48 0 0
5700 32.35 52.85 75.69 96.55 122.61 155.21 0 0
5800 32.92 53.78 77.02 98.24 124.76 157.93 0 0
5900 33.49 54.71 78.34 99.93 126.92 160.65 0 0
6000 34.05 55.63 79.67 101.63 129.07 163.38 0 0
6100 34.62 56.56 81 103.32 131.22 166.1 0 0
6200 35.19 57.49 82.33 105.01 133.37 168.82 0 0
6300 35.76 58.41 83.65 106.71 135.52 171.54 0 0
6400 36.32 59.34 84.98 108.4 137.67 174.27 0 0
6500 36.89 60.27 86.31 110.1 139.82 176.99 0 0
6600 37.46 61.2 87.64 111.79 141.97 179.71 0 0
6700 38.03 62.12 88.97 113.48 144.12 182.44 0 0
6800 38.6 63.05 90.29 115.18 146.28 185.16 0 0
6900 39.16 63.98 91.62 116.87 148.43 187.88 0 0
7000 39.73 64.9 92.95 118.57 150.58 190.61 0 0
7100 40.3 65.83 94.28 120.26 152.73 193.33 0 0
7200 40.87 66.76 95.61 121.95 154.88 196.05 0 0
7300 41.43 67.69 96.93 123.65 157.03 198.77 0 0
7400 42 68.61 98.26 125.34 159.18 201.5 0 0
7500 42.57 69.54 99.59 127.03 161.33 204.22 0 0
RPM 1st Gear 2nd Gear 3rd Gear 4th Gear 5th Gear 6th Gear 7th Gear 8th Gear





Some additional information on how these are calculated:

When D is the diameter of the tire, the car moves forward a distance πD with each revolution of the tire. If there are F revolutions per unit of time, it moves forward at a speed of πD´F per unit of time. If D is in inches and F is in revolutions per minute (rpm), the above result will be in inches per minute. There are 63,360 inches in a mile and 60 minutes in an hour, so one inch per minute equals 60/63360 miles per hour or 1/1056 mph. So we have the following formula:

V(mph) = D(in) ´ F(rpm) ´ (π/1056)

In the automotive industry, the coefficient 1056/π is usually taken to be equal to 336 (exactly it is 336.1352398...) and the formula corresponding to the above is:

(mph)(gear ratio)(336) = (tire diameter in inches)(rpm)

With the above numerical approximation, both formulas are identical if we consider that (rpm)/(gear ratio) is the rate of rotation of the tires. So the "gear ratio" as the number of rotations of the driveshaft for each turn of the tire. This ratio is normally more than 1, except in overdrive gear. So, calling R the "gear ratio", your final answer is:

V(mph) = D(in) ´ F(rpm) ´ (π/1056) / R

or, approximately: V = (D ´ F) / (336 ´ R)

where V is the velocity (in mph), D the tire diameter (in inches), F the engine rpm, and R the gear ratio.

 


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