“How many nurses do we actually need?” is one of the first questions any hospital administrator asks when staffing a ward — and in India, the most common answer references the nurse-to-patient ratios set by NABH (the National Accreditation Board for Hospitals & Healthcare Providers). This guide lays out the exact NABH-recommended nurse-to-patient ratios by unit type — general ward, ICU, HDU, emergency, OT and more — and shows how to turn a ratio into a real staffing number for your hospital.
Nurse-to-patient ratio in a general ward
Because it's the most-asked figure, start here: as per NABH, a general ward in a non-teaching hospital is staffed at 1:6— one nurse for every six patients on a shift. A super-speciality ward, where patients are sicker, tightens to around 1:4, and a High Dependency Unit (HDU) to 1:3. Teaching hospitals, which carry higher patient acuity and a training responsibility, generally staff their wards more richly than the non-teaching general-ward figure — confirm which standard applies to your hospital, since teaching and non-teaching norms differ.
NABH nurse-to-patient ratios by unit
The chart below shows the recommended ratio for each unit type. A shorter bar means fewer nurses are needed per patient (a general ward); a longer, more intense bar means a unit requires much closer staffing (ICU, neonatal ICU).
NABH-recommended nurse : patient ratios
Non-teaching hospital
Three units follow a slightly different rule and aren't ratio-based per patient:
- Labour room — 2 nurses per labour table (not per patient count).
- Major OT — 2 nurses per operating table.
- General OPD — roughly 1 nurse per 50 patients seen.
Nurse ratio in the ICU
The ICU is where the ratio matters most. NABH recommends 1:1 for a ventilated patient and 1:2 for a non-ventilated patient— a patient on a ventilator should effectively have a nurse to themselves. The same 1:1 / 1:2 split applies to emergency and trauma units handling ventilated patients, and the neonatal ICU is staffed at 1:1. Post-operative recovery and step-down units sit at 1:2, between the ICU and the general ward.
How to turn a ratio into a staffing number
The formula is straightforward once you know the ratio for a ward:
required nurses (per shift) = occupied beds ÷ ratio, rounded up
For example, a 30-bed general ward running at 24 occupied beds, at a 1:6 ratio, needs 4 nursesthat shift (24 ÷ 6 = 4). A 10-bed ICU running at 8 occupied beds, all ventilated, at a 1:1 ratio, needs 8 nurses that shift.
Use a minimum floor, not just the formula
Don't forget the leave reserve
The ratios above describe nurses who need to be presenton a given shift — they are not your total sanctioned headcount. Every nurse takes annual leave, sick leave, and weekly offs across the year, so NABH guidance recommends roughly 45% additional nurses on top of the ratio-based number to cover for absences without leaving shifts short.
In practice, this means a ward that needs 4 nurses present per shift, seven days a week, needs a sanctioned strength closer to 10–12 nurses once you account for weekly offs, annual leave and sick leave across the roster cycle — not just 4 people cycling endlessly through every shift.
Turning ratios into a working roster
Ratios are only useful if they actually drive the day-to-day roster. In a well-set-up hospital management system, each ward has its ratio configured once, and the software then:
- computes required headcount per shift automatically from the live bed count,
- shows a clear “3 of 4 rostered” badge on any shift that falls short, and
- can auto-fill the gap from available, not-on-leave nurses when a manager asks it to.
For how this connects to the actual weekly roster, cyclic shift patterns and leave handling, see our guide to building a nurse duty roster. For the broader NABH documentation and readiness picture beyond staffing, see our NABH accreditation software checklist, and for how staffing sits inside the wider system, our hospital management software overview.
How Uyirly helps you meet the ratio
Knowing the required nurse-to-patient ratio is one thing; staffing to it every shift is another. Uyirlybuilds ward rosters on a week grid and shows each day's coverage against the ward's required staffing, so an understaffed shift is flagged before it happens rather than discovered on the day. Because the roster sits on the same platform as admissions, the number of occupied beds and the nurses on duty line up.
- Ward rosters with per-day coverage against the required ratio.
- Understaffed shifts flagged in advance.
- Occupied beds and staffing on one system, so the ratio is real, not on paper.
Getting started
Rostering is part of Uyirly's hospital management software. See our nurse duty roster guide, or start a 30-day free trial with no credit card.