Infusion Time Remaining & Rate-to-Last
Infusion timing: time to empty a bag at the current rate, and, in the same call, the rate needed to make a bag last a target number of hours.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Volume remaining
- 250 mL
- Current rate
- 100 mL/hr
- Target duration
- 8 hours
Result: 250 mL at 100 mL/hr empties in 2h 30m; to last 8 h, run at 31.3 mL/hr.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Volume remaining
- Current rate (for the time-to-empty answer)
- Target duration (for the rate-to-last answer)
How this is calculated
Utility-class infusion arithmetic: time to empty = volume / rate; rate to last N hours = volume / N. ISMP Guidelines for Optimizing Safe Use of Smart Infusion Pumps (safe-practice framing).
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.