Days in A/R Calculator for Medical Practices
Estimate days in accounts receivable using your current A/R balance and average monthly gross charges.
Estimate days in accounts receivable
This calculator estimates the number of days represented by your current A/R balance relative to average daily charges.
Formula
Total A/R ÷ average daily charges
Average daily charges are estimated from monthly gross charges divided by 30.4 days.
Why track it?
Following the same calculation over time can help identify whether outstanding receivables are moving faster or slower.
Days in A/R calculation: formula, example and interpretation
Days in A/R estimates how many days of average revenue are represented by outstanding accounts receivable. A simple operational version is Total A/R ÷ average daily charges. This calculator converts monthly gross charges to an estimated daily amount using 30.4 days.
Example: if total A/R is $250,000 and average monthly gross charges are $180,000, estimated average daily charges are about $5,921 and Days in A/R is about 42.2 days. Use the same formula over time so the trend is comparable.
Questions about this free tool
What is Days in A/R?
Days in A/R is a revenue-cycle measure that estimates how many days of average revenue are represented by outstanding accounts receivable. It is most useful when the same definition and calculation method are used consistently over time.
How do you calculate Days in A/R?
A simplified operational formula is total accounts receivable divided by average daily charges. This calculator estimates average daily charges from the monthly gross charges entered by the user using 30.4 days per month.
Does a lower Days in A/R number always mean better performance?
A lower result can indicate faster collection, but the number should not be interpreted alone. Payer mix, charge volume, credits, claim lag, denials and the organization’s A/R definition can all affect the result.
Should I use gross or net revenue for Days in A/R?
Organizations use different approved methodologies. The important point is to document the numerator and denominator clearly and use the same method for trend comparisons. For this free calculator, monthly gross charges are used to estimate average daily charges.
Days in A/R and Aging Analysis
Learn how Days in A/R and aging buckets work together when prioritizing receivables follow-up.
Continue your revenue-cycle review
How to Reduce Days in A/R
Connect the metric with charge lag, claim quality, payer follow-up, aging prioritization and denial prevention.
Read the guide →Use the calculator with your own practice data
These tools are free to use and link to. Save the page for recurring monthly review, or share it with the team responsible for billing and revenue-cycle reporting.
View all free tools →Need help reviewing your billing workflow?
Use your calculation as a starting point, then request a complimentary billing review to discuss denials, A/R, billing cost and workflow improvement opportunities.