Equipment Replacement Fund Calculator
Estimate future replacement cost, the remaining funding gap, and monthly, annual, and hourly reserves. Results update automatically as inputs change.
How this calculator works
Future cost = current replacement cost × (1 + annual increase)^years. Reserve = funding gap / remaining years / billable hours.
Use the result as a cost checkpoint
Keep paid-off equipment from appearing free by assigning each billable hour part of its future replacement cost.
This tool is best for long-term replacement and capital planning. Use the result to decide how much current work should contribute to a future replacement. Review inflation, weak resale value, low annual hours, and using the reserve for other expenses before relying on the result.
Worked example
A replacement reserve is a planning tool, not a prediction of market value or tax treatment.
Review the cost, resale expectation, hours, and timing at least annually with the evidence checklist in the equipment replacement planning guide.
Input and quote review
- Keep the reserve separate from routine repairs.
- Use conservative resale assumptions.
- Do not treat the reserve calculation as tax or investment advice.
Keep the final scope, assumptions, exclusions, allowances, change triggers, and post-job results with the estimate so future defaults are supported by evidence.
Common questions
Is the replacement reserve part of maintenance cost?
No. Maintenance keeps the current machine working; a replacement reserve prepares for the next purchase. Keep them separate so service and future capital are both recovered without double counting.
Where are saved inputs stored?
Only an explicit Save stores inputs in this browser's localStorage. Share places inputs in the URL hash. The calculator does not send them to Equipment Rate Calc.
What if replacement cost or trade value changes?
Update the scenario with a current configured-equipment quote and a conservative net trade estimate. Run a lower trade-value or higher purchase-price case before committing the savings target.