Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Gear Ratio Calculator

Calculate the gear ratio between two meshing gears using their tooth counts. Useful for designing drivetrains, bicycles, RC vehicles, and any mechanical power-transmission system.

Input Gear Teeth (teeth)

Output Gear Teeth (teeth)

Fill in the required fields to see your result.

Automotive

Lease vs Buy Calculator

Compare the true out-of-pocket cost of leasing versus financing a vehicle purchase over the same period. Helps you decide whether leasing or buying makes more financial sense for your situation.

Vehicle MSRP ($)

Lease Term

Monthly Lease Payment ($/month)

Purchase Down Payment ($)

Purchase Loan Rate (%)

Residual Value % (%)

Fill in the required fields to see your result.

Key differences

	Gear Ratio Calculator	Lease vs Buy Calculator
Category	Automotive	Automotive
Inputs required	2	6
Result	Gear Ratio (:1)	Cost Difference (Lease - Buy) ($)
What it does	Calculate the gear ratio between two meshing gears using their tooth counts. Useful for designing drivetrains, bicycles, RC vehicles, and any mechanical power-transmission system.	Compare the true out-of-pocket cost of leasing versus financing a vehicle purchase over the same period. Helps you decide whether leasing or buying makes more financial sense for your situation.