Item Cost Per Use Calculator

Work out item cost per use instantly with clear inputs, formula shown and shareable results.

About Item Cost Per Use Calculator

Total uses are the monthly rate times the lifespan in months, and total cost adds the purchase price to running costs across all those uses. A high price spread over thousands of uses can be cheaper per use than a bargain that gets used twice, which is why frequency drives the decision.

Formula

Cost per use

cost per use = (price + running cost x total uses) / total uses

Worked example

With the default values below, Item Cost Per Use Calculator returns Cost per use of $1.6153. Change any input above and every figure here is recalculated in your browser.

Inputs used

Purchase priceminimum 0.01: 350
Uses per monthminimum 0.1: 8
Expected lifespanminimum 0.1 months: 36 months
Running cost per useminimum 0: 0.4

Results

Cost per use: $1.6153
Total uses over its life: 288
Total cost of ownership: $465.20
Equivalent annual cost: $155.07

Step by step

1Values used
2Cost per use
3Cost per use= 1.6153
4Total uses over its life= 288
5Total cost of ownership= 465.20
6Equivalent annual cost= 155.07

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax or compounding frequency into account.
Figures are rounded for display to 4 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is the Item Cost Per Use figure worked out?

cost per use = (price + running cost x total uses) / total uses. Total uses are the monthly rate times the lifespan in months, and total cost adds the purchase price to running costs across all those uses.

Why does this matter?

A high price spread over thousands of uses can be cheaper per use than a bargain that gets used twice, which is why frequency drives the decision.

What do I need to enter?

Enter purchase price, uses per month, expected lifespan, running cost per use. The defaults shown are a realistic worked example — swap in your own figures to get a result you can use.