Apps like Sariel's Gear Calculator

Here are some great alternatives to Sariel's Gear Calculator by Sariel.pl :
MTB Gear Ratio
MTB Gear Ratio
★4.8
RC Car GearCalc
RC Car GearCalc
★4.4
RC Pit Calc Pro
RC Pit Calc Pro
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BicyCalc - Bicycle Calculator
BicyCalc - Bicycle Calculator
★4.2
GearBuddy RPM-MPH Calculator
GearBuddy RPM-MPH Calculator
★4.3
Spin Those Gears
Spin Those Gears
★3.2
RC Speed Calculator Pro
RC Speed Calculator Pro
★4.9
Spin Those Gears 2
Spin Those Gears 2
★3.7
Hot Rod Calc
Hot Rod Calc
★5.0
RPM And Pulley Diam Calculator
RPM And Pulley Diam Calculator
★4.3
MOTORUN ENGINE TOOLS - PRO
MOTORUN ENGINE TOOLS - PRO
★3.7
Gear Clicker
Gear Clicker
★3.6
Gear Design 3D in TrueGeometry
Gear Design 3D in TrueGeometry
★3.8
Kilowatt
Kilowatt
★4.8
7DS CC Calculator
7DS CC Calculator
★4.1
Mechanical Calculator
Mechanical Calculator
★3.3