Frequency
rpmtorpd
Convert revolutions per minute (rpm) to revolutions per day (rpd).
Factor1 rpm = 1440 rpd
Converter
rpm
Accepts numbers or expressions, e.g. 150 + 14.7
Result
rpd
Rendered to 6 significant figures.
Formula
Formula
rpd = rpm × 1440
Multiply any value in revolutions per minute by 1440 to obtain the value in revolutions per day.
Worked example
Convert 1 rpm to rpd.
- 01Start with 1 rpm.
- 02Multiply by the conversion factor: 1 × 1440 = 1440 rpd.
Result1 rpm = 1440 rpd
Conversion table
| rpm | rpd |
|---|---|
| 1 | 1440 |
| 2 | 2880 |
| 5 | 7200 |
| 10 | 14400 |
| 20 | 28800 |
| 50 | 72000 |
| 100 | 1.4400e+5 |
| 200 | 2.8800e+5 |
| 500 | 7.2000e+5 |
| 1000 | 1.4400e+6 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from rpm to rpd?
1 rpm equals 1440 rpd. To convert, multiply the value in revolutions per minute by 1440.
How do I convert 1 rpm to rpd?
1 rpm = 1440 rpd. For any value, multiply by 1440.
How do I convert rpd back to rpm?
Divide by the same factor — or equivalently, multiply by 0.0006944444. So 1 rpd = 0.000694444 rpm.
When would I need to convert revolution per minute to revolution per day?
Frequency conversions between rpm 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).