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Use this calculator to estimate fixed cost per unit (AFC). It’s a simple metric for unit economics: take your total fixed costs for a period and divide by the number of units produced or sold in that same period.
Last updated: January 2026
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Fixed costs that don’t vary with output (rent, salaries, insurance, depreciation, etc.).
Units produced or sold in the same period as the fixed costs.
Average fixed cost
$12.50 / unit
AFC = Total fixed cost ÷ Number of units
Total fixed cost
$250,000.00
Units
20,000
Use it to
pressure-test pricing
Key idea
spread fixed costs
Connect it to
break-even analysis
If total fixed cost is $250,000 and you produce 20,000 units:
Average fixed cost is one of the simplest “per-unit” metrics. It doesn’t tell the full story (you still need variable costs and pricing), but it’s a fast way to understand how fixed overhead behaves as output changes.
AFC = Total fixed cost ÷ Units“Fixed” means the cost doesn’t change with output in the short run (e.g. rent). “Average” means per unit.
Share it with operators and finance teams working on unit economics and pricing.
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