per hour
Frequencyexact by definition
A per-hour rate is exactly 1/3,600 s⁻¹. It is used for event rates rather than oscillations: air changes per hour in ventilation, turnovers per hour in a pool or tank, and dosing or sampling rates. The factor is exact by definition.
Watch out: Air changes per hour describes how many times a room's own volume of air is supplied each hour, so it means nothing without the room volume attached. Six ACH in a small office and six ACH in a warehouse are completely different airflows.
| 1 | 0.00027777778 |
One per hour in every frequency unit
| 277,778 | nanohertz (nHz) | |
| 8,766 | per year (1/yr) | |
| 277.778 | microhertz (μHz) | |
| 24 | per day (1/d) | |
| 1 | per hour (1/h)this unit | |
| 0.277778 | millihertz (mHz) | |
| 0.0166667 | revolution per minute (rpm) | |
| 0.0166667 | cycle per minute (cpm) | |
| 0.0166667 | beat per minute (bpm) | |
| 0.000277778 | hertz (Hz) | |
| 0.000277778 | cycle per second (cps) | |
| 0.000277778 | revolution per second (rev/s) | |
| 2.77778e-07 | kilohertz (kHz) | |
| 2.77778e-10 | megahertz (MHz) | |
| 2.77778e-13 | gigahertz (GHz) | |
| 2.77778e-16 | terahertz (THz) | |
| 2.77778e-19 | petahertz (PHz) |
Solvers that use frequency