Calculator for Gear Ratio/Linear Speed

[lucasoren]

I thought I'd share the RPM and linear speed calculator I've been working on here. Every sprocket and gear ratio, together with its rpm and linear velocity for every wheel size, are listed on this reference sheet. The third sheet is used to look up speed ranges. Every speed green in that range will be highlighted when you set a minimum and maximum feet per second at the bottom. A compound gear ratio calculator, an angular velocity calculator, and a linear velocity calculator mwst rechner are on the fourth sheet.

 

[Denny]

Thanks?

 

[Master Hack]

Well shyt, where are the sheets?
No linky?

 

[bob58o]

Teach the process. Calculators are for the weak

Step 1… Find circumference
A) Find tire diameter in inches, because ‘Merica…
B) Divide inches by 12 to find diameter in feet.
C) Multiply Diameter in feet by 3.14159 to find Circumference in feet.

Step 2… Find Gear Ratio
A). Count teeth on big sprocket
B) Count teeth on little sprocket
C) Divide Big number by little number

Step 3… Use engine RPM and gear ratio to find rpm of drive wheel
A) Divide engine rpm by gear ratio

Step 4… Use tire diameter and some constants to convert RPM of drive wheel to MPH.

1 drive wheel revolution = circumference of tire
60 minutes per hour
5280 feet per mile.

A) Drive wheel rpm x circumference (in feet) = feet/min
B) (Feet/Min) x 60 = Feet/Hour
C) (Feet/Hour) / 5280 = miles per hour

 

[bob58o]

Yes Pi (to me) will always include 5 decimals spots…. Because I always have to “cheer” it…
Sine, Cosine…Cosine, Sine… 3.14159

 

[panchothedog]

I just like it to feel fast and make me smile when I bury my right foot. Hope you have as much fun with your formulas and calculator.

 

[Hellion]

 

[Denny]

I think we have been AI’d. I’m skeered of the puters.