What format should I use for the stage efficiencies?

Enter them as decimal values between 0 and 1 (for example, 0.98 for 98% efficiency), with one value per line or separated by spaces.

Can I calculate power loss without entering the input power?

No, you must provide an input power value in Watts to calculate the absolute power loss and final output power.

How is the overall efficiency calculated?

It is calculated by multiplying the efficiencies of all individual stages together: η_total = η₁ × η₂ × ... × ηₙ.

What units are used for the input and output power?

The calculator uses Watts (W) for power inputs and outputs.

Is there a limit to the number of transmission stages I can add?

No, you can enter as many stage efficiencies as your transmission system requires, one per line.

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Power Transmission Efficiency Calculator

Calculate the overall efficiency of a multi-stage transmission. η_total = η₁·η₂·…·ηₙ. Enter one stage efficiency per line (decimal, e.g. 0.98). Optionally add an input power to get the total loss and per-stage output power.

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1 examples

Three stages: 0.98, 0.95, 0.97 with P_in = 5000 W

η_total = 0.98·0.95·0.97 = 0.9031 (90.31%). P_loss = 5000·(1−0.9031) = 484.6850 W.

{"result":"Overall efficiency η_total = 0.98 × 0.95 × 0.97 = 0.9031 (90.3070%). P_loss = 5000 × (1 − 0.9031) = 484.6500 W. After 3 stages, output power = 4515.3500 W.","metadata":{"input":{"stageEfficiencies":[0.98,0.95,0.97],"inputPower":5000},"result":{"overallEfficiency":0.9031,"overallEfficiencyPercent":90.307,"stageCount":3,"powerLoss":484.65,"outputPower":4515.35,"powerUnit":"W","stageOutputs":[4900,4655,4515.35]}}}

Inputs

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3 options

ContentPaste or type the main input values.1

Stage Efficiencies (ηᵢ)textareaRequiredOne efficiency per line (decimal in (0,1], e.g. 0.98 for 98%). Comma/space separated also accepted.

SettingsAdjust formats, ranges, numbers, and modes.2

Input Power P_in (W)numberOptionalOptional. If provided, the total power loss and per-stage output power are computed.Decimal PlacesnumberOptional

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Power Transmission Efficiency Calculator

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Use cases

Examples

1. Three-Stage Industrial Gearbox Analysis

2. Robotic Joint Actuator Efficiency Evaluation

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