Efficiency Calculator
Compute efficiency η = useful output / total input.
Input Data
Useful Output
J
Total Input
J
Results
η = useful/total.
80%
At a glance:η = useful output / total input. Complements thermal-efficiency and work.
Formula
η = output / input.
$$\eta = \dfrac{\text{useful output}}{\text{total input}} \times 100\%$$$$\eta_{\text{Carnot}} = 1 - \dfrac{T_c}{T_h}$$How to Use
- Enter output and input.
- The tool returns efficiency.
Case Studies
output=80, input=100
η = 0.8 (80%).
FAQ
Can exceed 1?
No — by energy conservation η ≤ 1 (≤100%).
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References
Content review: Calculatorism Science Team. Results are for reference only; please refer to the relevant authorities for the official figures.