Enter the total number of parts produced and the hours worked into the calculator to determine the parts per hour productivity rate.
Parts Per Hour Formula
The calculator uses one core formula and converts between time units as needed.
PPH = Parts / Hours
- PPH = parts produced per hour
- Parts = total parts produced or required (count)
- Hours = production time expressed in hours
If you start from a cycle time in seconds per part, convert with:
PPH = 3600 / CycleTime_seconds
Time inputs in minutes, seconds, or days are converted to hours before dividing. The calculator uses active production time, so it does not subtract breaks, changeovers, or downtime unless you exclude that time from the input.
Calculator modes:
- Run output: divides total parts by run time to give the measured rate.
- Required rate: divides parts needed by available time to give the rate you must hit to finish on schedule.
- Convert rate: takes a known rate or cycle time and restates it as parts per hour, minute, second, and day.
Reference Tables
Use these as quick lookups when you only have a cycle time or only have an hourly target.
| Cycle Time | Parts/Hour | Parts/Day (24h) |
|---|---|---|
| 1 sec | 3,600 | 86,400 |
| 5 sec | 720 | 17,280 |
| 15 sec | 240 | 5,760 |
| 30 sec | 120 | 2,880 |
| 45 sec | 80 | 1,920 |
| 1 min | 60 | 1,440 |
| 2 min | 30 | 720 |
| 5 min | 12 | 288 |
| 10 min | 6 | 144 |
| Daily Target (8h shift) | Required PPH | Cycle Time/Part |
|---|---|---|
| 100 | 12.5 | 288 sec |
| 500 | 62.5 | 57.6 sec |
| 1,000 | 125 | 28.8 sec |
| 2,500 | 312.5 | 11.5 sec |
| 5,000 | 625 | 5.76 sec |
| 10,000 | 1,250 | 2.88 sec |
Examples and FAQ
Example 1 — Run output. A line produces 1,250 parts in an 8 hour shift. PPH = 1250 / 8 = 156.25 parts/hour. That is one part every 23.04 seconds.
Example 2 — Required rate. You need 5,000 parts in 2 hours. Required PPH = 5000 / 2 = 2,500 parts/hour, which is a cycle time of 1.44 seconds per part.
Example 3 — Cycle time conversion. A press has a 45 second cycle. PPH = 3600 / 45 = 80 parts/hour, or 1,920 parts in a 24 hour run.
Should I use gross or net time? The calculator divides by whatever time you enter. Use net running time if you want the true machine rate. Use gross shift time if you want a planning rate that already accounts for breaks and downtime.
How does this relate to takt time? Takt time is available time divided by customer demand. The required-rate mode gives you the inverse expressed as parts per hour. If the actual run rate is below the required rate, the line will not meet demand without overtime or added capacity.
What about scrap? The formula counts whatever you enter. If you want a good-parts-per-hour figure, enter only accepted parts. If you want gross throughput, enter total parts produced including rejects.
How do I convert PPH to seconds per part? Divide 3600 by PPH. A rate of 240 parts/hour equals 15 seconds per part.
