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DSO & DPO Calculator — Days Outstanding + Cash Conversion Gap

Free DSO + DPO calculator. AR ÷ credit sales × 365 = DSO. AP ÷ COGS × 365 = DPO. The gap (DSO − DPO) is what you fund out of working capital.

DSO & DPO — Days Sales / Payables Outstanding

DSO (days to collect)

46 days

DPO (days to pay)

42 days

Cash conversion gap

4 days

Target DSO: under 45 days for most B2B; under 30 for B2C. Cash conversion gap = DSO − DPO. A 30+ day gap means you're funding your customers' cash flow out of your own pocket — every day of that gap costs working-capital interest.

About this tool

The cash conversion gap

Cash conversion gap = DSO − DPO. A 30+ day gap means you're funding your customers' cash flow out of your own pocket. Every day of that gap costs working-capital interest. Target DSO < 45 days for B2B; < 30 for B2C.

How to use the DSO & DPO Calculator

Takes about a minute. No signup, no download, your data stays in your browser.

  1. 1
    Open the tool. Scroll up to the DSO & DPO Calculator above — it loads instantly in your browser, no install needed.
  2. 2
    Enter your values. The fields come pre-filled with realistic defaults so you can see how it works — replace them with your own numbers.
  3. 3
    Read the result. The output updates instantly. Copy or share it — nothing is uploaded to a server, everything stays on your device.

Frequently asked questions

Common questions about the DSO & DPO Calculator.

Is the DSO & DPO Calculator free to use?

Yes. The DSO & DPO Calculatoron 7BusyBoss is completely free — no signup, no paywall, no usage cap.

Do I need to sign up to use the DSO & DPO Calculator?

No. The DSO & DPO Calculatorworks instantly in your browser — no account needed. Signing in with Google is optional and only unlocks features like saving favorites and higher AI build limits.

Does the DSO & DPO Calculator work on mobile?

Yes. Every tool on 7BusyBoss is mobile-responsive and works in any modern browser — Chrome, Safari, Firefox, Edge — on phones, tablets and desktops.

Is my data safe when I use the DSO & DPO Calculator?

Yes. The DSO & DPO Calculatorruns entirely in your browser — your inputs never leave your device unless the tool explicitly fetches public data (e.g. currency rates). We don't store the values you type.

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