Calculate and improve capacity utilisation
Measure capacity utilisation, assess under- or over-capacity operation and compare ways to improve use of available capacity.
Cambridge International AS & A Level Business 9609, 2026–2028 syllabus and 2029 syllabus, section 4.3.1. Cambridge states that both current versions have no significant changes affecting teaching. This lesson maps only its named section; other sections and full paper practice remain separate. Written practice is self-checked
Before you begin
- No previous business course is assumed. Use the lesson's definitions before applying them to the business context.
Work on paper. Try each question before revealing help, and explain why your method works.
Quick readiness check
How is capacity utilisation calculated?
What you will learn
- Calculate capacity utilisation
- Explain consequences of under- and over-utilisation
- Evaluate methods to improve utilisation
Capacity utilisation compares actual and maximum output
Capacity utilisation = actual output ÷ maximum possible output × 100. Use a matching time period and a realistic maximum capacity for the stated process. A business may measure a machine, site or whole operation, so identify the unit being considered.
Low utilisation can leave equipment and staff idle, raising average cost or wasting resources. Operating near or beyond practical capacity can create bottlenecks, overtime, breakdowns, errors or delays. The relationship depends on process design and the definition of maximum capacity.
Improvement choices should fit the cause
A business may raise utilisation by attracting demand, improving scheduling, reducing downtime, resolving bottlenecks, extending opening hours or changing the product mix. Each option has cost and service consequences.
Improving the percentage is not automatically desirable: output may exceed demand or compromise quality and worker wellbeing. Diagnose whether the constraint is demand, staffing, equipment or process flow, then monitor output, cost, delivery and quality together.
Pause and explain
A line makes 420 units against a maximum of 600 in the same week. What is utilisation?
Worked example
A workshop can produce up to 2,400 units per month and currently makes 1,800. Calculate capacity utilisation.
Show the worked solution
- Check actual and maximum output use the same period.
- Divide 1,800 by 2,400.
- Multiply by 100 and express as a percentage.
Answer Capacity utilisation is 1,800 ÷ 2,400 × 100 = 75%. This does not by itself show whether demand, cost or service performance is satisfactory.
Try a topic test
Choose Easy, Normal or Difficult. Save your answers and open worked review after finishing.
Test this topic →From guided practice to a new situation
Write your answer and reasoning first. Use a hint only if you are stuck. The model solution is for self-checking; your written work is not automatically marked.
A hotel has 160 rooms and sells 120 each night. Calculate room capacity utilisation and name one factor managers should consider before raising it.
Give me a hint
Compare rooms sold with total rooms for the same night.
Compare my reasoning
- Actual sold rooms are 120 and maximum is 160.
- Calculate 120 ÷ 160 × 100.
- Consider demand, price, staffing or service quality before seeking more occupancy.
Room capacity utilisation is 75%. Managers should consider whether extra occupancy can be served without harming cleaning, staffing or guest experience, and whether price or demand changes would be profitable.
Look for these in your work
- Calculation is correct
- The time basis is consistent
- An operational consequence is considered
A workshop operates at 55% utilisation because demand is seasonal. Explain one possible improvement and one risk.
Give me a hint
Choose an approach that addresses timing or spare capacity without adding unwanted output.
Compare my reasoning
- A business could schedule maintenance or staff flexibly in quieter periods.
- It could seek complementary off-season orders if capacity and skills fit.
- Check extra selling or staffing costs and avoid producing unsold stock.
The workshop could seek compatible off-season orders or use quiet periods for planned maintenance and training. Extra orders may raise utilisation, but discounts, setup and staffing costs could reduce margin; producing inventory without demand can also create cost rather than value.
Look for these in your work
- Cause of low use is linked to seasonality
- Improvement is concrete
- Risk and cost are evaluated
A restaurant raises bookings until every table is used, but service times and complaints increase. Explain why the higher utilisation may not represent better performance.
Give me a hint
Evaluate capacity percentage alongside quality and delivery measures.
Compare my reasoning
- More table use may increase potential sales.
- Overloading staff or kitchen capacity can lengthen waits and create errors.
- Compare revenue, contribution, waits and complaints before adjusting bookings.
Higher table utilisation can raise sales, but if the kitchen and staff are overloaded, delays and errors may weaken customer value and repeat visits. The restaurant should compare contribution with waiting times, complaints and service quality, then adjust booking slots or staffing rather than target full use alone.
Look for these in your work
- Utilisation benefit is acknowledged
- Service trade-off is explained
- Multiple performance measures guide action
Common mistakes
- Reversing actual and maximum output
- Comparing actual output and capacity from different periods
- Assuming 100% utilisation is always the objective
What can you explain now?
How is capacity utilisation calculated?
Compare with the explanation
Actual output divided by maximum possible output, multiplied by 100
This expresses the share of stated capacity currently used.
After trying it yourself, choose your next review. This is your self-assessment.
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Make it stick
How do you calculate capacity utilisation, and which demand, cost and quality measures help judge whether it should rise?
If you needed the solution, close it and solve the problem again from a blank page. A correct answer is stronger when you can explain the reason for each step.