efficiency rating
Output versus input
An efficiency rating is a standardized measure of how well something converts input into output—whether a furnace turning fuel into heat, an employee producing results from hours worked, or an appliance using electricity.
Higher ratings indicate less waste: The new water heater has a 95% efficiency rating.
In sports, efficiency ratings condense player performance into single numbers for comparison.
- outputWhat something generates
- measureUnit of quantity
- performance metricsQuantifiable measures of effectiveness
- key performance indicatorsMeasurable values tracking success
- cost-effectivenessValue relative to expenditure
bang for buck · bottom line · benchmarking · scorecards · ranking systems · pass fail · fuel economy · miles per gallon · green building · meter · accuracy · throughput · grading scales · transformer · process improvement · Six Sigma · gauge · peer review
- Fuel Cellshydrogen fuel cell, anode, cathode, membrane, catalyst
- air filtrationair filter, air purifier, replacement filter, vacuum filter, purification
- fuel efficiencyfuel economy, gas mileage, fuel consumption, fuel saving, eco-driving
- performance reviewsperformance review, appraisals, annual review, evaluations, performance appraisal
- sports statisticianbatting average, ERA, field goal percentage, WAR, points per game
- sports statsstats, most points, yards, most goals, box scores