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How the operating cycle works

The operating cycle is DSO plus DIO: how long cash sits in customers and stock before suppliers are counted. 45 plus 60 is 105 days. The cash conversion cycle then subtracts DPO, 105 minus 30, which is 75 days.

Cash conversion cycle

75 days

Inventory and receivables hold cash for 105 days. Payables give 30 days of that back.

Operating cycle (DSO + DIO)
105 days
Days payable outstanding
30 days
Cash conversion cycle
75 days

How long customers take to pay. Receivables over daily sales.

How long stock sits. Inventory over daily cost of goods.

How long the firm takes to pay suppliers. A larger figure shortens the cycle.

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Days sales outstanding

In short

  • Operating cycle is DSO+DIODSO + DIO. 45 plus 60 is 105 days.
  • CCC subtracts DPO from that: 105 minus 30 is 75 days. The operating cycle does not know the payable clock.
  • DSO 30 and DIO 20 is a 50 day operating cycle. DPO 100 then makes CCC minus 50 days. The operating cycle stayed positive.
  • Equal clocks of 40 and 40 are an 80 day operating cycle. CCC is 40 days after DPO of 40.
  • How the cash conversion cycle works owns the residual after payables. This page owns the loop before that subtraction.

Customers plus stock, before suppliers

The operating cycle asks how long the firm waits, on average, from paying to produce or buy stock until the customer pays:

Operating cycle=DSO+DIO\text{Operating cycle} = DSO + DIO

DSO is days sales outstanding. DIO is days inventory outstanding. 45 plus 60 is 105 days. For 105 days the operations have cash sitting in the loop, before anyone asks how long the firm takes to pay its own bills.

The cash conversion cycle subtracts DPO from that 105: 105 minus 30 is 75 days. The cash conversion cycle calculator on this page prints both. How the cash conversion cycle works owns the residual. This page owns the 105.

DSO against DIO is which clock is doing the work inside the 105. Operating cycle against CCC is the 105 against the 75.

A short cycle can still fund a negative CCC

DSO 30, DIO 20. Operating cycle 50 days. DPO 100. CCC is minus 50 days.

The loop from stock and customers is 50 days. Suppliers are paid 100 days out. The operating cycle did not go negative. CCC did, because payables more than cover the 50. Working capital in dollars can still be positive while CCC is negative, because days and dollars are different readings of the same loop.

Equal clocks are not a 0 day cycle

DSO 40, DIO 40. Operating cycle 80 days. DPO 40. CCC 40 days.

Matching the three clocks does not zero the operating cycle. It zeros nothing. The firm still funds 80 days of customers and stock, then takes 40 days of supplier credit against that.

Days from the ledger

This page does not compute DSO or DIO from a balance sheet. The usual constructions, using a 365 day year, are receivables over daily sales and inventory over daily cost of goods. Some sheets use 360. Say which, and use it for every firm in the comparison. Type the days your sheet already has.

Inventory turnover is 365 over DIO, the same DIO written as a turns figure.

Growth still consumes cash

A 105 day operating cycle on a larger sales book next year consumes more cash than this year, because the same days sit on a larger number. Cutting DSO by refusing customers, or cutting DIO into stockouts, can cost more than the cash it frees. The free cash flow page is where a change in working capital comes off NOPAT.

What this page is not doing

It is not CCC, not a cash forecast, and not a target of 105 days. The three sheets are 45 plus 60 (105 days, CCC 75), 30 plus 20 (50 days, CCC minus 50), and 40 plus 40 (80 days, CCC 40). This is educational material, not financial advice.

Worked examples

45 plus 60

DSO 45, DIO 60, DPO 30. What is the operating cycle?

  1. Operating cycle: 45+60=10545 + 60 = 105 days.
  2. CCC: 105−30=75105 - 30 = 75 days.

The operating cycle is 105 days. The cash conversion cycle is 75 days.

A 50 day loop under a negative CCC

DSO 30, DIO 20, DPO 100. What is the operating cycle?

  1. Operating cycle: 30+20=5030 + 20 = 50 days.
  2. CCC: 50−100=−5050 - 100 = -50 days.

The operating cycle is 50 days. CCC is minus 50 days. The loop stayed positive. Payables more than covered it.

Equal clocks

DSO 40, DIO 40, DPO 40. What is the operating cycle?

  1. Operating cycle: 40+40=8040 + 40 = 80 days.
  2. CCC: 80−40=4080 - 40 = 40 days.

The operating cycle is 80 days. CCC is 40 days.

Common questions

Is the operating cycle the same as CCC?

No. Operating cycle is DSO plus DIO. CCC subtracts DPO. On the first sheet that is 105 against 75.

Can the operating cycle be negative?

Only if DSO plus DIO is negative, which days outstanding are not. Negative CCC comes from DPO, not from this sum.

Is 105 days a target?

It is 45 plus 60 on the teaching sheet. Compare inside a sector. This is educational material, not financial advice.

Keep reading

This page is educational material, not financial advice. The figures come from the formula shown and assume the inputs you enter hold for the whole term. Your own rate, fees, taxes and timing will differ, so treat the output as arithmetic to check a decision against, not as a recommendation.