Infusion Calculator: IV Dose

Infusion Calculator works out dose, infusion rate and duration in seconds at the bedside. Built for nurses, ICU, anaesthesia, emergency departments and paramedics. Free, works offline, no account needed.

⭐ DOSE CALCULATION
Enter body weight, the total drug dose in the fluid and the fluid volume, and read the pump rate straight away. Eight dose units are supported: mg/kg/hour, mg/kg/minute, mcg/kg/hour, mcg/kg/minute, mg/hour, mg/minute, mcg/hour and mcg/minute. Concentration (mg/mL), per-minute rate and total duration appear on the same screen.

⭐ INFUSION RATE
Works out the pump rate from fluid volume and administration time. The result is given in both mL/hour and mL/minute.

⭐ INFUSION TIME AND END TIME
Works out total duration and the estimated end time from fluid volume and flow rate. One tap sets your phone alarm for the end time. A countdown bar shows how much of the perfusion has run; the hourly flow plan lists how much fluid will have been delivered at hour 1, 3 and 6.

⭐ YOUR OWN INFUSION PROTOCOLS
Save the preparations you use often once, then pick them from a list — you never re-enter the dose by hand. That is the most practical way to cut the risk of a dose error. Search by name, concentration or type; recently used and A–Z lists.

⭐ QUICK VALUES
Set the one-tap values under every field yourself: body weight, fluid volume, total drug dose in fluid, dose, flow rate, hours and minutes. You can also add them from your own protocols, so your unit's standard values sit under your thumb.

⭐ DESIGNED FOR SHIFTS
The dark theme is easy on the eyes on a night shift. Choose light, dark or follow the system. Results update as you type — there is no "calculate" button to press.

⭐ 12 LANGUAGES
English, Turkish, German, Spanish, Russian, French, Italian, Arabic, Chinese, Korean, Japanese and Indonesian. Change the language inside the app; the interface lays out right-to-left for Arabic.

⭐ FREE AND OFFLINE
Every calculation runs without an internet connection. Your saved protocols and quick values stay on your device and are never sent to a server. No account, no sign-in.

WHO USES IT
Nurses, intensive care and anaesthesia teams, emergency staff, paramedics, physicians, and nursing and medical students. The mcg/kg/minute and mg/kg/hour figures needed for vasopressor, sedative and analgesic infusions take seconds.

DISCLAIMER
This app is not a clinical decision support tool. Every calculation made with it must be independently double-checked for patient safety. It must not be used alone in patient care. Always follow your institution's protocols and the drug's prescribing information for dosing. If a result looks wrong to you, report it by email and we can make the app safer together.

Recent changes:
The app has been rebuilt from the ground up.

• Brand-new, cleaner interface with a dark theme
• New tab: Infusion Time — end time and hourly flow plan
• Quick values: the one-tap values under each field are now yours to define in Settings
• Edit and search saved protocols
• All 12 languages reviewed and corrected
• The app name on your home screen now follows your language
• Bottom tab labels no longer get cut off

Your saved protocols are preserved.