Age and growth
Weight change from birth weight
Percentage of birth weight lost or gained, for monitoring feeding in the first weeks.
For education. Check against your unit's guidance and a second clinician before use.
Fill in the boxes above to see the result.
How this is calculated
- Change (%) = (current weight − birth weight) ÷ birth weight × 100.
Sources
Checked by NICUlearn, 6 Oct 2026.