Wound Measurement Calculator
Calculate wound surface area, volume, and total area including undermining for wound care documentation and healing tracking.
Medical Disclaimer
This calculator is for informational and educational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about your health. Never disregard professional medical advice or delay seeking it because of results from this tool.
Inputs
Results
Surface Area
6 cm²
Size Category
2 (1=Small, 2=Moderate, 3=Large, 4=Very Large)
How to Use This Calculator
- Measure and enter wound length (cm), width (cm), and depth (cm) using a sterile probe or ruler.
- Enter undermining distance (cm) if tunneling or undermining is present.
- Read wound surface area (cm2) calculated from length and width.
- Track measurements over time — decreasing surface area indicates healing progress.
- Document measurements in the wound care flow sheet and compare to baseline.
How the result changes with Wound Length
| Wound Length | Surface Area | Size Category |
|---|---|---|
| 5 | 10 cm² | 2 (1=Small, 2=Moderate, 3=Large, 4=Very Large) |
| 18 | 36 cm² | 3 (1=Small, 2=Moderate, 3=Large, 4=Very Large) |
| 33 | 66 cm² | 4 (1=Small, 2=Moderate, 3=Large, 4=Very Large) |
| 45 | 90 cm² | 4 (1=Small, 2=Moderate, 3=Large, 4=Very Large) |
What each input means
- Wound Length
- Longest length of wound measured head-to-toe in centimeters.
- Wound Width
- Widest width of wound measured side-to-side, perpendicular to length.
- Wound Depth
- Deepest point of the wound measured with a sterile probe in centimeters.
- Undermining
- Greatest extent of tissue destruction beneath intact wound edges in centimeters.
How this is calculated
Worked example, using the default values
- Identify Input Parameters4 parametersWound Length = 3, Wound Width = 2, Wound Depth = 0.5, Undermining = 0 = 4 input(s) provided
- Calculate Surface AreaSurface Area6 = 6
- Calculate Size CategorySize Category2 = 2
- Calculate VolumeVolume3 = 3
- Calculate Total AreaTotal Area6 = 6
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