Course contents
Practitioner · Course 4: Working Capital and the Cash Cycle · Lesson 2 of 5

Calculating a factory's own cash conversion cycle from its real operating days

Level: PractitionerTime: 45 minutesOrder used: A (the T-shirt, Northline Apparel export order)Tool: Working capital and cash cycle sheet
This lesson is for a factory owner, a production manager, or a finance clerk who wants a real number for how long a factory's cash stays tied up. You need lesson T15-C04-L01 on working capital. Day-counts are illustrative teaching figures for Order A, not published data about a real company; at work, measure your own factory's own days.
FactoryDelta Garments
Export orderOrder A, Northline Apparel, letter of credit at shipment
Days inventory outstanding (illustrative)70 days
Days sales outstanding (illustrative)5 days
Days payable outstanding (illustrative)30 days
Cash conversion cycle45 days (70 + 5 - 30)
02Opening

This page teaches how to turn "cash is tied up for a while" into one real number a factory can plan around

This page is for a factory owner, a production manager, or a finance clerk who needs a single, comparable number for how long a factory's cash stays tied up, not just a general sense that it does. At work, lesson T15-C04-L01 already showed that working capital is real money tied up, separate from profit. This lesson mainly teaches the money flow: it breaks that wait into three named, countable parts, and adds and subtracts them into one number, the cash conversion cycle, that a factory can compare across orders, across seasons, and against its own bank balance.

Without this skill, a merchandiser can describe a cash problem only in vague terms, "it takes a while to get paid," with no way to compare one order's cash cycle against another's, or to test whether a proposed change would actually help. Delta Garments' own Order A gives a concrete, worked case: three separate day-counts that combine into one cash conversion cycle figure, the number this whole course builds on.

03Before you start

What you need, and what this lesson does not cover

You need: working capital and the idea of cash tied up from lesson T15-C04-L01, and the idea of a cash-flow gap from lesson T01-C07-L04.

By the end of this lesson you can:

  • name the three day-counts that combine to form a cash conversion cycle;
  • explain what each of the three day-counts measures in a factory's own operations;
  • calculate a cash conversion cycle from three given day-counts;
  • explain why a longer payable period shortens, not lengthens, the cash conversion cycle;
  • calculate the cash a given cash conversion cycle actually ties up for a given order value.

Not covered here: how to shorten a cash conversion cycle once it is calculated (lesson T15-C04-L03), and how a specific order's own payment terms change these day-counts (lesson T15-C04-L04).

04Key terms

Words you will meet in this lesson

TermMeaning
Working capitalThe money a business needs on hand to keep operating while it waits to be paid for goods already made.
Cash-flow gapThe length of time between a factory finishing production and actually receiving payment for that production.
Letter of creditA bank promise to pay the factory once the shipping documents match the order.
Open accountA payment method where the buyer pays the factory an agreed number of days after delivery, with no bank guarantee in between.
ProfitThe money left over after all costs are paid, out of a selling price.
05Teaching
The rule

The cash conversion cycle adds the days inventory sits, adds the days a customer takes to pay, and subtracts the days a factory takes to pay its own suppliers

The cash conversion cycle turns a factory's cash wait into one number of days: days inventory outstanding, plus days sales outstanding, minus days payable outstanding. Days inventory outstanding counts how long materials and work in progress sit before an order ships. Days sales outstanding counts how long it takes, after shipment or delivery, for cash to actually arrive. Days payable outstanding counts how long a factory itself takes to pay its own suppliers for fabric and trims. The first two lengthen the cycle; the third shortens it, because every day a factory delays paying its own suppliers is a day it does not need its own cash for that cost yet.

Cash conversion cycle = Days inventory outstanding + Days sales outstanding - Days payable outstanding
What you meet in real life

The same three-part formula produces very different totals depending on payment terms and supplier credit

What can differThe shapes you will meetWhy it matters
Fast-paying export termsDelta Garments' Order A is paid by letter of credit close to shipment, so days sales outstanding is small, illustratively about 5 days.A short days-sales-outstanding figure keeps the whole cycle shorter, even with a long production period.
Slow-paying domestic termsAn equivalent-value domestic order for Cedar & Co. is paid 60 days after delivery, so days sales outstanding is illustratively 60 days instead of 5.The same production period now sits under a much longer days sales outstanding, lengthening the whole cycle by the difference.
Longer supplier creditA factory that negotiates 45 days of credit from its fabric supplier, instead of 30, raises its days payable outstanding.A higher days payable outstanding shortens the cycle, since it is subtracted, not added.
Make to Stock inventoryA Make to Stock brand like Cedar & Co. holds finished retail stock before any sale exists, adding its own days inventory outstanding on the selling side of the chain.The same three-part formula applies to a retail business, not only to a factory, once its own inventory and payment days are known.
Export letter of credit compared with a 60-day domestic open accountExport: cash conversion cycle 45 daysDomestic open account: cash conversion cycle 100 days (70 + 60 - 30)
The same production and supplier terms sit under two very different cash conversion cycles. Only the days sales outstanding term changes, from 5 days under a letter of credit to 60 days under a domestic open account, but it more than doubles the total cycle.
The case we follow

Delta Garments calculates Order A's own cash conversion cycle from three illustrative day-counts

Delta Garments' own production and payment records give three illustrative teaching day-counts for Order A, paid by letter of credit at shipment. Days inventory outstanding is about 70 days, close to Order A's own fixed production period from lesson T01-C07-L04. Days sales outstanding is about 5 days, since a letter of credit pays out close to shipment once documents match. Days payable outstanding is about 30 days, the credit Delta Garments' own fabric and trims suppliers extend to it.

Day-countIllustrative valueWhat it measures
Days inventory outstanding70 daysHow long materials and work in progress sit before Order A ships
Days sales outstanding5 daysHow long after shipment the letter of credit actually pays out
Days payable outstanding30 daysHow long Delta Garments itself takes to pay its own fabric and trims suppliers
The worked number

Order A's own cash conversion cycle comes to 45 days once all three parts are combined

Cash conversion cycle: 70 + 5 - 30 = 45 days
Order A's cash conversion cycle, illustrative daysDays inventory outstanding, 70 daysDays sales outstanding, 5 daysminus Days payable outstanding, 30 days
Two parts add days to the cycle; one part subtracts them. Order A's 70 days of inventory and 5 days of waiting for the letter of credit are reduced by 30 days of supplier credit, leaving 45 days.
The method

Five steps to calculate any order's own cash conversion cycle

  1. Measure days inventory outstanding: the days materials and work in progress sit before the order ships.
  2. Measure days sales outstanding: the days between shipment or delivery and cash actually arriving.
  3. Measure days payable outstanding: the days the factory itself takes to pay its own suppliers.
  4. Add the first two day-counts together, then subtract the third.
  5. Record the result as the order's own cash conversion cycle, in days.
The trap

A common mistake is forgetting that a longer days payable outstanding helps, not hurts, the cash conversion cycle

A common mistake is treating every large day-count in this formula as bad news. Days inventory outstanding and days sales outstanding do lengthen the cycle, and a factory wants both as small as it reasonably can. Days payable outstanding works the opposite way: a longer period of supplier credit shortens the cash conversion cycle, because it delays the factory's own cash outflow to match its cash inflow more closely. A merchandiser who reads a rising days payable outstanding as a warning sign, without checking whether it reflects a negotiated, agreed supplier term rather than a late, unpaid bill, can wrongly recommend paying suppliers faster, which would lengthen the cash conversion cycle and tie up more of the factory's own cash for no real benefit. The same confusion can run the other way too: a factory that shortens days sales outstanding by pushing a buyer toward faster payment, without checking what that buyer might ask for in return, such as a lower price, can lose more in price than it gains in a shorter cash conversion cycle. Every one of the three day-counts needs to be read for what it actually reflects, not simply for whether the number went up or down.

06In plain words

A factory's cash conversion cycle is one number, in days, made from three separate counts. The first counts how long materials and unfinished goods sit in the factory before an order ships. The second counts how long it then takes to actually receive payment. The third counts how long the factory itself takes to pay its own suppliers for fabric and trims. Add the first two together, then take away the third, and the answer is how many days the factory's own cash stays tied up for that order. A longer wait to be paid makes this number bigger; a longer period of supplier credit makes it smaller. Knowing this one number lets a factory compare very different orders on the same basis, instead of only sensing that some feel slower than others.

07Quick check
  • Cash conversion cycle equals days inventory outstanding plus days sales outstanding minus days payable outstanding.
  • Days inventory outstanding and days sales outstanding both lengthen the cycle; days payable outstanding shortens it.
  • A letter of credit at shipment typically gives a small days sales outstanding figure; a long open account gives a large one.
  • Negotiating longer supplier credit is a legitimate way to shorten a cash conversion cycle, not a sign of trouble on its own.
  • The same three-part formula applies to a retail or brand business, using its own inventory and payment days.
  • A cash conversion cycle of 45 days on a USD 48,000 order means roughly that value is tied up for 45 days at a time.
08Workplace scenario

A finance clerk at Delta Garments reports a rising days payable outstanding as a warning sign

Delta Garments' finance clerk reviews the factory's own monthly figures and notices that days payable outstanding has risen from 30 days to 45 days over the past two quarters. The clerk flags this in a report to the owner as a possible sign of financial trouble, since the factory is "taking longer to pay its bills."

Here is the note the clerk actually attached to the figures:

Finance note, this quarter. Days payable outstanding: risen from 30 days to 45 days. Reason recorded: Delta Garments negotiated a new 45-day credit term with Colorline Dyeing, replacing the previous 30-day term, agreed in writing by both sides. Days inventory outstanding and days sales outstanding: unchanged at 70 and 5 days.

Is a rising days payable outstanding, on its own, a warning sign for Delta Garments? Decide before opening the answer.

Show decision

No, not in this case. Two facts in the clerk's own note decide this together.

First, what caused the rise. The note states plainly that the change came from a newly negotiated, agreed 45-day credit term with Colorline Dyeing, not from Delta Garments falling behind on payments it already owed.

Second, what this does to the cash conversion cycle. With days inventory outstanding and days sales outstanding unchanged at 70 and 5 days, the cash conversion cycle falls from 45 days (70 + 5 - 30) to 30 days (70 + 5 - 45), a real improvement, not a decline.

A rising days payable outstanding is a warning sign only when it reflects unpaid, overdue bills a factory did not negotiate. Here, it reflects a deliberately negotiated term that shortens the cash conversion cycle by 15 days, freeing up cash rather than signalling trouble.

09What it costs

What a 15-day improvement in the cash conversion cycle is worth on an order of Order A's own scale

Using Order A's own order value and the two cash conversion cycle figures from the workplace scenario:

Cash conversion cycle before the new supplier term: 70 + 5 - 30 = 45 days
Cash conversion cycle after the new supplier term: 70 + 5 - 45 = 30 days
Improvement: 45 - 30 = 15 fewer days cash stays tied up

Across Order A's own USD 48,000 order value, a 15-day shorter cash conversion cycle means Delta Garments' cash is freed up 15 days sooner every time an order of this size runs through the factory, cash it can use for its own next order's fabric purchase instead of borrowing or delaying a different payment. Framed against Order A's own USD 3,900 profit, a repeatable 15-day improvement, applied order after order, is a cash benefit worth more over a year than a single order's own profit.

10Working template

Working capital and cash cycle sheet: fill in the three day-counts and let the formula do the rest

Open the course workbook's "Cash conversion cycle" sheet. It lists days inventory outstanding, days sales outstanding and days payable outstanding as separate rows for Order A's own illustrative export figures, and calculates the total cash conversion cycle and the cash tied up with a live formula. Fill in the yellow "Your own order" column with your own factory's three day-counts, measured from your own production, payment and supplier records, to see your own cash conversion cycle calculated automatically.

[Download the Working capital and cash cycle sheet](../../templates/T15-C04-working-capital-and-cash-cycle-sheet.xlsx)

Download the Working capital and cash cycle sheet (Excel)

11Check yourself

1. What is the correct formula for the cash conversion cycle?

2. Order A's own days inventory outstanding is 70 days and days sales outstanding is 5 days. If days payable outstanding is 30 days, what is the cash conversion cycle?

3. A factory's days payable outstanding rises from 30 days to 50 days after it negotiates longer supplier credit, with days inventory outstanding and days sales outstanding unchanged at 60 and 10 days. What happens to its cash conversion cycle?

12Glossary
ENARFRTRMeaning
Working capitalرأس المال العاملFonds de roulementİşletme sermayesiThe money a business needs on hand to keep operating while it waits to be paid for goods already made.
Cash-flow gapفجوة التدفق النقديÉcart de trésorerieNakit akışı açığıThe length of time between a factory finishing production and actually receiving payment for that production.
Letter of creditاعتماد مستنديLettre de créditAkreditifA bank promise to pay the factory once the shipping documents match the order.
Open accountحساب مفتوحCompte ouvertAçık hesapA payment method where the buyer pays the factory an agreed number of days after delivery, with no bank guarantee in between.
ProfitالربحProfitKârThe money left over after all costs are paid, out of a selling price.
13Next

Lesson 4.3: Shortening the cash cycle without changing what the factory actually makes

You now know how to calculate a factory's own cash conversion cycle. The next lesson shows the three separate ways to shorten that same number without changing a single thing about what the factory produces. Back to the course map

14Ladder

RecognizeName the three day-counts that make up a cash conversion cycle.
ConnectSee why two day-counts add to the cycle and one subtracts from it.
CompareWeigh a fast-paying export term against a slow-paying domestic one using the same formula.
DecideJudge whether a rising days payable outstanding is a warning sign or a genuine improvement.