# Average Variable Cost Calculator

URL: https://speedycalculator.com/calculators/finance/average-variable-cost/
Last updated: 2026-10-25

> The average variable cost calculator works out average variable cost (AVC), average fixed cost and average total cost per unit from total variable cost, fixed cost and output.

## Inputs

- Total variable cost
- Total fixed cost
- Quantity produced
- Market price per unit

## Results

- Average variable cost (AVC)
- Average fixed cost (AFC)
- Average total cost (ATC)
- Short-run decision at this price

## Formula

```
AVC = total variable cost ÷ quantity
AFC = fixed cost ÷ quantity
ATC = AVC + AFC = total cost ÷ quantity
```

## Explanation

In the short run a firm should keep producing as long as the price covers average variable cost; below AVC it minimises losses by shutting down. AFC always falls as output rises.

### How to use the Average Variable Cost Calculator

- **Total variable cost**
- **Total fixed cost**
- **Quantity produced**
- **Market price per unit**

Results update as you type, and every field accepts the units shown in its menu.

### How it works

Enter total variable cost, total fixed cost and the quantity produced.

### Tips

- Use consistent periods (a year or a quarter) for flow figures and period-end values for balances.
- Average opening and closing balances when a ratio mixes a flow with a stock.
- Benchmark against competitors in the same industry.
- Read the ratio together with others – profitability, liquidity and efficiency tell different stories.

### Common mistakes to avoid

- Using sales instead of cost of goods sold for inventory ratios.
- Mixing gross, operating and net profit.
- Ignoring one-off items that distort a single year.

### Inputs explained

FieldWhat to enterTotal variable costAmount in your currencyTotal fixed costAmount in your currencyQuantity producedA numberMarket price per unitAmount in your currency

### What each result means

- **Average variable cost (AVC)** = [Total variable cost]÷[Quantity produced]
- **Average fixed cost (AFC)** = [Total fixed cost]÷[Quantity produced]
- **Average total cost (ATC)** = ([Total variable cost] + [Total fixed cost])÷[Quantity produced]

### Example values

How the main result changes when **Total variable cost** changes and everything else stays at the example values above:

Total variable costAverage variable cost (AVC)22,5001533,75022.545,0003056,25037.567,5004590,00060

## Worked example

Inputs — Total variable cost: $45,000; Total fixed cost: $30,000; Quantity produced: 1,500; Market price per unit: $42.

Results — **Average variable cost (AVC) = $30.00**; Average fixed cost (AFC) = $20.00; Average total cost (ATC) = $50.00; Short-run decision at this price = Loss, but cover AVC – keep producing in the short run.

## FAQ

**What is average variable cost?**
Variable cost per unit of output.

**What is the shutdown rule?**
Shut down in the short run if price falls below minimum AVC.

**Why does AFC fall with output?**
Fixed costs are spread over more units.

**What formula does the Average Variable Cost Calculator use?**
AVC = total variable cost ÷ quantity.


## Sources

- [Corporate Finance Institute – financial ratios](https://corporatefinanceinstitute.com/)