Spread a replacement purchase price over an expected useful-life assumption for comparison purposes.
Annualized Replacement Cost Calculator
Formula
How to use the result
This is not accounting depreciation. It is a simple decision-planning ratio and does not include financing, maintenance or resale unless you add them separately.
What the calculator does not know
This site does not diagnose faults or provide repair instructions. Stop using items that may be unsafe, recalled, electrically hazardous, fire-damaged, structurally compromised, leaking dangerous substances or otherwise safety-critical, and follow manufacturer, recall-authority and qualified service-professional guidance.
Improve the estimate
Keep the inputs used for the decision and compare the estimate with actual results. A simple calculator is most useful when it makes the assumptions visible enough to learn from the difference.