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2006 Lamborghini Gallardo Gear Ratios Calculator, MPH, Top Speed

 


This calculator outputs the how fast the Lamborghini Gallardo 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 2.87 4.63 6.53 8.36 10.13 12.14 0 0
600 3.45 5.56 7.83 10.03 12.16 14.56 0 0
700 4.02 6.49 9.14 11.7 14.19 16.99 0 0
800 4.59 7.41 10.44 13.38 16.21 19.42 0 0
900 5.17 8.34 11.75 15.05 18.24 21.84 0 0
1000 5.74 9.27 13.05 16.72 20.26 24.27 0 0
1100 6.32 10.2 14.36 18.39 22.29 26.7 0 0
1200 6.89 11.12 15.66 20.07 24.32 29.13 0 0
1300 7.47 12.05 16.97 21.74 26.34 31.55 0 0
1400 8.04 12.98 18.27 23.41 28.37 33.98 0 0
1500 8.62 13.9 19.58 25.08 30.4 36.41 0 0
1600 9.19 14.83 20.88 26.75 32.42 38.83 0 0
1700 9.76 15.76 22.19 28.43 34.45 41.26 0 0
1800 10.34 16.68 23.49 30.1 36.48 43.69 0 0
1900 10.91 17.61 24.8 31.77 38.5 46.12 0 0
2000 11.49 18.54 26.1 33.44 40.53 48.54 0 0
2100 12.06 19.46 27.41 35.11 42.56 50.97 0 0
2200 12.64 20.39 28.71 36.79 44.58 53.4 0 0
2300 13.21 21.32 30.02 38.46 46.61 55.82 0 0
2400 13.78 22.24 31.32 40.13 48.64 58.25 0 0
2500 14.36 23.17 32.63 41.8 50.66 60.68 0 0
2600 14.93 24.1 33.93 43.47 52.69 63.11 0 0
2700 15.51 25.03 35.24 45.15 54.71 65.53 0 0
2800 16.08 25.95 36.54 46.82 56.74 67.96 0 0
2900 16.66 26.88 37.85 48.49 58.77 70.39 0 0
3000 17.23 27.81 39.15 50.16 60.79 72.81 0 0
3100 17.81 28.73 40.46 51.84 62.82 75.24 0 0
3200 18.38 29.66 41.76 53.51 64.85 77.67 0 0
3300 18.95 30.59 43.07 55.18 66.87 80.09 0 0
3400 19.53 31.51 44.37 56.85 68.9 82.52 0 0
3500 20.1 32.44 45.68 58.52 70.93 84.95 0 0
3600 20.68 33.37 46.98 60.2 72.95 87.38 0 0
3700 21.25 34.29 48.29 61.87 74.98 89.8 0 0
3800 21.83 35.22 49.59 63.54 77.01 92.23 0 0
3900 22.4 36.15 50.9 65.21 79.03 94.66 0 0
4000 22.97 37.07 52.2 66.88 81.06 97.08 0 0
4100 23.55 38 53.51 68.56 83.09 99.51 0 0
4200 24.12 38.93 54.81 70.23 85.11 101.94 0 0
4300 24.7 39.86 56.12 71.9 87.14 104.37 0 0
4400 25.27 40.78 57.43 73.57 89.16 106.79 0 0
4500 25.85 41.71 58.73 75.24 91.19 109.22 0 0
4600 26.42 42.64 60.04 76.92 93.22 111.65 0 0
4700 26.99 43.56 61.34 78.59 95.24 114.07 0 0
4800 27.57 44.49 62.65 80.26 97.27 116.5 0 0
4900 28.14 45.42 63.95 81.93 99.3 118.93 0 0
5000 28.72 46.34 65.26 83.61 101.32 121.36 0 0
5100 29.29 47.27 66.56 85.28 103.35 123.78 0 0
5200 29.87 48.2 67.87 86.95 105.38 126.21 0 0
5300 30.44 49.12 69.17 88.62 107.4 128.64 0 0
5400 31.02 50.05 70.48 90.29 109.43 131.06 0 0
5500 31.59 50.98 71.78 91.97 111.46 133.49 0 0
5600 32.16 51.9 73.09 93.64 113.48 135.92 0 0
5700 32.74 52.83 74.39 95.31 115.51 138.35 0 0
5800 33.31 53.76 75.7 96.98 117.54 140.77 0 0
5900 33.89 54.69 77 98.65 119.56 143.2 0 0
6000 34.46 55.61 78.31 100.33 121.59 145.63 0 0
6100 35.04 56.54 79.61 102 123.61 148.05 0 0
6200 35.61 57.47 80.92 103.67 125.64 150.48 0 0
6300 36.18 58.39 82.22 105.34 127.67 152.91 0 0
6400 36.76 59.32 83.53 107.01 129.69 155.34 0 0
6500 37.33 60.25 84.83 108.69 131.72 157.76 0 0
6600 37.91 61.17 86.14 110.36 133.75 160.19 0 0
6700 38.48 62.1 87.44 112.03 135.77 162.62 0 0
6800 39.06 63.03 88.75 113.7 137.8 165.04 0 0
6900 39.63 63.95 90.05 115.38 139.83 167.47 0 0
7000 40.21 64.88 91.36 117.05 141.85 169.9 0 0
7100 40.78 65.81 92.66 118.72 143.88 172.33 0 0
7200 41.35 66.73 93.97 120.39 145.91 174.75 0 0
7300 41.93 67.66 95.27 122.06 147.93 177.18 0 0
7400 42.5 68.59 96.58 123.74 149.96 179.61 0 0
7500 43.08 69.52 97.88 125.41 151.99 182.03 0 0
7600 43.65 70.44 99.19 127.08 154.01 184.46 0 0
7700 44.23 71.37 100.49 128.75 156.04 186.89 0 0
7800 44.8 72.3 101.8 130.42 158.07 189.32 0 0
7900 45.37 73.22 103.1 132.1 160.09 191.74 0 0
8000 45.95 74.15 104.41 133.77 162.12 194.17 0 0
8100 46.52 75.08 105.71 135.44 164.14 196.6 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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