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Calculator Collection

Belt Drive Length Calculator vs Belt Tension Calculator

Two calculators for the same neighbourhood of questions. Here is what each measures, what you feed in, and where you'd reach for one over the other.

Mechanical

Belt Drive Length Calculator

Calculate the required belt length for open or crossed two-pulley drive systems given pulley diameters and center distance. Used by mechanical engineers and technicians when sizing V-belts or flat belts for machinery.

Answers
Belt Length (mm)
Inputs
Pulley 1 Diameter, Pulley 2 Diameter, Center Distance, Drive Configuration
Mechanical

Belt Tension Calculator

Find the tight-side tension required in a belt drive to transmit a given power at a known belt speed. Use it when designing V-belt or flat-belt systems to size belts, pulleys, and shafts correctly.

Answers
Tight Side Tension (N)
Inputs
Transmitted Power, Belt Speed, Wrap Angle, Belt Type

At a glance

Belt Drive Length CalculatorBelt Tension Calculator
CategoryMechanicalMechanical
AnswersBelt LengthTight Side Tension
Inputs44
Result unitmmN

When to use each

Calculate the required belt length for open or crossed two-pulley drive systems given pulley diameters and center distance. Used by mechanical engineers and technicians when sizing V-belts or flat belts for machinery.

Find the tight-side tension required in a belt drive to transmit a given power at a known belt speed. Use it when designing V-belt or flat-belt systems to size belts, pulleys, and shafts correctly.

Compare page seeded from editorial siblings — both calculators list each other as related.