| 100% | WINDMILLS | 9 | Machines that convert gusts into power |
| 72% | ENGINES | 7 | Machines that convert power into movement |
| 44% | TURBINE | 7 | Machine that produces power |
| 41% | TURBINES | 8 | Devices that convert wind power to electricity |
| 41% | DYNAMO | 6 | Machine to convert mechanical into electrical energy |
| 41% | PROPELLER | 9 | Fan that converts rotational motion into thrust |
| 40% | FUTONS | 6 | Japanese-style sofas that convert into flat beds |
| 40% | GENERATOR | 9 | A device that converts motive power to electricity |
| 40% | WINDMILL | 8 | Dutch machine that harnesses the power of air |
| 40% | CAM | 3 | Device that converts rotary motion into linear motion |
| 39% | SYNTH | 5 | Device that converts electronic signals into sound, for short |
| 38% | PISTONENGINE | 12 | Device that converts pressure into a rotating motion |
| 38% | COUCHETTE | 9 | Seats that can convert into berths |
| 37% | RECEIVER | 8 | TV apparatus that converts signals into pictures |
| 37% | ONES | 4 | Bills that might be inserted into snack machines |
| 37% | OAST | 4 | Outbuilding that's sometimes converted into a dwelling |
| 37% | SHREDDER | 8 | Office machine that rips paper into tiny pieces |
| 36% | COCHLEA | 7 | Spiral tube of the inner ear that converts sound vibrations into nerve impulses |
| 35% | ARMORY | 6 | Storage building that might be converted into a community center |
| 34% | COINSTAR | 8 | Brand of machine that turns change into cash vouchers |
| 34% | WIND | 4 | Renewable energy source that is captured by turbines and converted into electricity |
| 33% | YOYO | 4 | Toy that works by converting potential energy into kinetic energy and vice versa |
| 33% | COIN | 4 | Item that's put into a vending machine slot |
| 32% | WINCH | 5 | Machine that pulls |
| 32% | BALER | 5 | Machine that bundles |
| 32% | PCS | 3 | Machines that run Windows |
| 31% | GENERATOR | 9 | Machine that produces electricity |
| 31% | COPIER | 6 | Machine that reproduces documents |
| 31% | ENGINE | 6 | Machine that may purr |
| 31% | ENGINE | 6 | Machine that creates motion |