Frequency
rphtorpd
Convert revolutions per hour (rph) to revolutions per day (rpd).
Factor1 rph = 24 rpd
Converter
rph
Accepts numbers or expressions, e.g. 150 + 14.7
Result
rpd
Rendered to 6 significant figures.
Formula
Formula
rpd = rph × 24
Multiply any value in revolutions per hour by 24 to obtain the value in revolutions per day.
Worked example
Convert 1 rph to rpd.
- 01Start with 1 rph.
- 02Multiply by the conversion factor: 1 × 24 = 24 rpd.
Result1 rph = 24 rpd
Conversion table
| rph | rpd |
|---|---|
| 1 | 24 |
| 2 | 48 |
| 5 | 120 |
| 10 | 240 |
| 20 | 480 |
| 50 | 1200 |
| 100 | 2400 |
| 200 | 4800 |
| 500 | 12000 |
| 1000 | 24000 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from rph to rpd?
1 rph equals 24 rpd. To convert, multiply the value in revolutions per hour by 24.
How do I convert 1 rph to rpd?
1 rph = 24 rpd. For any value, multiply by 24.
How do I convert rpd back to rph?
Divide by the same factor — or equivalently, multiply by 0.04166667. So 1 rpd = 0.0416667 rph.
When would I need to convert revolution per hour to revolution per day?
Frequency conversions between rph and rpd are needed in signal and RF engineering, motor and turbomachinery rotational-speed work, vibration and pulse-rate analysis, and control-loop sample-rate specification. Hz dominates electronics and instrumentation; kHz, MHz and GHz cover audio through microwave; rpm and rps dominate mechanical rotational equipment; cycles per minute, second and hour cover slow industrial cyclic processes. Angular frequency (rad/s) and time-period (Hz ↔ seconds) conversions are NOT included — they require either a 2π factor or a reciprocal relationship.
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).