How to use this calculator
- Enter average receivables, net credit sales, days in reporting period.
- Choose a display currency, then select Calculate. Results also update after a brief pause while you edit.
- Read the result with the assumptions below. Export details or save a second scenario to compare your choices.
Formula and method
Assumptions and limitations
Use averages covering the same reporting period and the same cost or sales basis. These are descriptive averages, not invoice due dates.
Worked example
With average receivables = 10000, net credit sales = 100000, days in reporting period = 365, receivable days is approximately 36.5.
What the result means
Collection speed expressed in days; use net credit sales rather than total sales.
Common questions
How should I interpret receivable days?
Collection speed expressed in days; use net credit sales rather than total sales.
What should I check before using this result?
Use averages covering the same reporting period and the same cost or sales basis. These are descriptive averages, not invoice due dates.
Methodology and transparency
Calculation specification reviewed on 2026-10-14. Mathematical implementation is tested against independent reference fixtures. This does not imply review by a licensed financial professional. Read the testing and precision policy.
Background reference: openstax.org — financial method. FinanceMath implements its own calculator.