How to Use This Tool
Translate inventory, receivable and payable timing into days of cash exposure. Calculate cash conversion cycle, working capital tied up and cash released by a DSO improvement using your operating days.
The decision this tool supports
Revenue can grow while inventory and receivables absorb more cash than supplier terms release. This page keeps the decision bounded to cash conversion cycle and the supporting outputs shown beside it. Cash Conversion Cycle does not import an account, infer a market rate, or silently substitute an industry average.
Inputs and units
The Cash Conversion Cycle calculation uses Days inventory outstanding, Days sales outstanding, Days payables outstanding, Average daily cash cost, Planned DSO reduction. Keep all money values in one currency and all time, distance, mass, energy or volume entries in the unit printed beside the field. Mixing Cash Conversion Cycle scopes can produce a plausible number with the wrong meaning.
- Days inventory outstanding is entered in days.
- Days sales outstanding is entered in days.
- Days payables outstanding is entered in days.
- Average daily cash cost is entered in currency/day.
- Planned DSO reduction is entered in days.
Formula and worked check
Cash conversion cycle = DIO + DSO − DPO. Modeled cash exposure multiplies positive cycle days by average daily cash cost. DIO 45, DSO 30 and DPO 25 produce a 50-day cycle; at $5,000 daily cost that is $250,000, and a five-day DSO reduction releases $25,000. The Cash Conversion Cycle default is an executable known-answer case, not a benchmark or recommendation. Change one input and verify that the direction of cash conversion cycle still matches the stated relationship.
How to interpret the result
Shorter positive cycles generally reduce modeled operating cash exposure, but a negative cycle is a different business model and is outside this page's positive-cycle comparison. The additional Cash Conversion Cycle outputs expose the denominator, comparison, capacity or reverse value needed to audit the primary result instead of presenting one unexplained number.
Assumptions
- DIO, DSO and DPO cover the same representative period.
- Average daily cash cost is the relevant cash-flow denominator.
- The tool models a positive operating cycle only.
Save the Cash Conversion Cycle input values and date with any material decision. A later Cash Conversion Cycle rerun is reproducible only when the same assumptions and units are available.
Limitations and safety boundary
Average-day inputs hide seasonality, taxes, financing facilities, deposits, bad debt and supplier term constraints. Cash Conversion Cycle is an estimate and cannot replace a contract, local code, licensed professional, calibrated measurement, lender statement or platform report where one governs the decision.
Source and privacy
The Cash Conversion Cycle definition or rule was checked against U.S. Small Business Administration — Manage your finances on 2026-08-26. Recheck U.S. Small Business Administration — Manage your finances when a specification or policy behind Cash Conversion Cycle can change. Cash Conversion Cycle arithmetic runs in this browser tab; ecech does not receive the values through a calculation API.
Sources & assumptions
Tool Spec v2 · verified 2026-08-26. Platform rules and fees can change; the editable inputs remain authoritative for your account.
Official references
- U.S. Small Business Administration — Manage your finances (checked 2026-08-26)
Model assumptions
- DIO, DSO and DPO cover the same representative period.
- Average daily cash cost is the relevant cash-flow denominator.
- The tool models a positive operating cycle only.
- Average-day inputs hide seasonality, taxes, financing facilities, deposits, bad debt and supplier term constraints.
