This average fixed cost calculator spreads a stated total fixed cost across the number of units produced in the same accounting period.
Finance
Average Fixed Cost Calculator
Divide total fixed cost by production volume.
Calculator
About this calculator
Formula notes
average fixed cost per unit = total fixed cost / number of units produced.
Worked examples
- Example: 12,500 in fixed costs divided across 2,500 units gives an average fixed cost of 5 per unit.
- If fixed cost is 84,000 and output is 12,000 units, average fixed cost is 7 per unit; at 21,000 units it falls to 4 if fixed cost is unchanged.
How to use it
- Enter total fixed cost for one period.
- Enter units produced in that same period.
- Use the result with variable cost when estimating total unit cost.
Frequently asked questions
Does average fixed cost fall when output rises?
Yes, within this simple model the same fixed total is spread across more units, so fixed cost per unit falls.
Should variable costs be included?
No. This result covers fixed costs only; variable and mixed costs require separate treatment.
Limits and interpretation
- The calculation assumes the entered total is genuinely fixed over the stated activity range and accounting period; step costs can change after capacity thresholds.
- Average fixed cost is not marginal cost, cash cost, selling price, or full unit cost and should not be used alone for pricing or production decisions.