Fleet software ROI and break-even calculator

By ReWheel. Content reviewed .

Test whether a business case survives your own downside assumptions. Keep one-time cost, monthly recurring cost and monthly benefit separate; ROI needs a positive first-year cost and payback needs a positive monthly net benefit.

Measure first

Start from hours you measured on the task today, not savings you hope for, and keep a downside case beside the base case.

Value released hours as capacity to redeploy unless paid hours actually fall, and count the same staff time only once.

The formulas

With B monthly benefit, R monthly recurring cost and F one-time cost

  • Monthly net benefit = B minus R. Annual net benefit = 12 × (B minus R).
  • First-year ROI = (12 × B minus (F + 12 × R)) ÷ (F + 12 × R) × 100.
  • Simple payback = F ÷ (B minus R), only when B is greater than R.
  • The model does not discount cash flows or include tax, financing or timing.

Before relying on a result

  • Label each benefit as hypothetical or evidenced, with its source.
  • Keep cost avoidance, cash savings and revenue apart; saved time does not cut payroll by itself.
  • Count each effect in one benefit line only.

Build the cost inputs with the total cost calculator

ROI and break-even calculator

Nothing you enter leaves your browser. Add up to 20 rows, review them and download a CSV, or download the sample file below.

Changing it clears the amounts.

In the selected currency.

In the selected currency.

Enter it even if it matches the base case.

Same currency.

Worksheet records
Record 1

Count each effect once.

Keep these three apart.

Hypothetical or measured.

Where the figure comes from and who owns it.

In the selected currency.

A lower figure you would still defend.

What ReWheel provides

ReWheel FMS connects supported vehicle information with equipment and operational records for field and institutional operations. Vehicle compatibility, data-access requirements, connectivity and installation are assessed per deployment, never assumed.

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