Capacity Utilisation Calculator
Utilisation rate, spare capacity and how fixed costs per unit change when you fill the plant.
Results
Utilisation
82.22
%
Spare capacity
1600
un
Cost per unit
9.2811
Cost per unit
8.2000
What this tool does
Fixed costs do not care how much you produce, so they spread thinner over every extra unit — the last two results show exactly what running at full capacity would do to your cost per part. That difference is usually a stronger argument for chasing utilisation than the utilisation figure itself.
Formula
utilisation = real output ÷ maximum capacity × 100
Variables
| Symbol | Meaning | Unit |
|---|---|---|
ac | Actual output | un |
mx | Maximum capacity | un |
fc | Fixed costs | — |
vc | Cost per unit | — |
U | Utilisation | % |
SP | Spare capacity | un |
CU | Cost per unit | — |
CF | Cost per unit | — |
Worked example
- Actual output7400 un
- Maximum capacity9000 un
- Fixed costs45,000
- Cost per unit3.2
- Utilisation82.22 %
- Spare capacity1600 un
- Cost per unit9.2811
- Cost per unit8.2000
Limitations
- The result is an estimate based only on the values you type. Real situations often include factors this calculator does not know about.
- The tool works with whatever currency you use for the inputs; it does not convert between currencies.