First Aid Kit Calculator
Size first aid kits for a group with kit count, bandages, and gauze pads.
What it does
First aid kits work when they sit near the group with enough small supplies to handle cuts and scrapes before help arrives. Counting by people keeps church trips, teams, and classrooms from sharing one thin box.
The tool above takes people covered. It returns kits at one per 4 people, bandages at 25 per kit, and gauze pads at 4 per kit, so 12 people read as 3 kits, 75 bandages, and 12 pads.
This math sizes base counts only. It does not replace training in CPR and care steps, prescription meds, allergy plans, or hazard specific gear for shops and labs.
Preparedness guidance frames the same base: keep a first aid kit in home, work, and car supplies beside water, food, flashlight, and batteries. Training courses then teach the hands that use the kit.
Check dates yearly. Adhesives weaken, ointments expire, and gloves tear, so restock the count this page gives on a calendar reminder.
How to use
- Enter people covered in one place.
- Read kits needed first for the shopping list.
- Read bandages for the small wound stock.
- Read gauze pads for larger coverage.
- Place one kit per group area, not all in one room.
- Recheck counts when the group grows.
Formula
- people
- Group size covered in one place.
- kits
- Base kits at one per 4 people.
- bandages
- Adhesive bandages at 25 per kit.
Rounds up since partial kits do not exist. Small groups under 4 still need 1 full kit. Medicines and specialty gear need separate lists.
Worked example
Example: 12 people covered
People 12 in one place.
- Kits: ceil(12 / 4) = 3 kits.
- Bandages: 3 x 25 = 75 bandages.
- Gauze: 3 x 4 = 12 pads.
- Tool shows 3 kits, 75 bandages, 12 pads.
- Place: one kit per 4 person zone for fast reach.
Reference table
| People | Kits | Bandages |
|---|---|---|
| 4 | 1 kits | 25 bandages |
| 12 | 3 kits | 75 bandages |
| 20 | 5 kits | 125 bandages |
Limits
- Base counts only. Training decides outcomes.
- Ignores meds, allergy, and chronic needs.
- Ignores hazard gear for shops, labs, and water.
- Expiry and damage need yearly restock checks.
Common mistakes
- Stocking one kit for a whole building.
- Counting cases instead of people covered.
- Skipping restock after partial use.
- Storing kits where no one can reach them.
- Treating supplies as a substitute for training.
Try it yourself
Quick checks. Answers sit tucked under each question.
5 people covered?
2 kits, 50 bandages, 8 pads.
30 people covered?
8 kits, 200 bandages, 32 pads.
8 people covered?
2 kits, 50 bandages, 8 pads.
Questions
How many first aid kits do I need?
About one per 4 people. 12 people need 3 kits.
How many bandages per kit?
This base uses 25 per kit. 3 kits hold 75 bandages.
Where should kits go?
Spread them across group areas at home, work, and cars, not one closet.
What else belongs beside kits?
Water, food, flashlight, batteries, meds, and documents per preparedness lists.
How often should I restock?
Yearly and after each use. Adhesives and ointments expire.
Does a kit replace training?
No. Take first aid and CPR courses so hands know the steps.