Baby Growth Tracker
Track weight and length gains between check-ups.
About Baby Growth Tracker
Weight gain is spread over the days between measurements and length growth is projected monthly, giving clear per-period rates. Velocity matters more than a single point, so tracking rates between visits reveals steady or concerning growth early.
Formula
Baby Growth Tracker
Gain = weight change / days between; length per month = change / months
- gain per day
- Average weight change per day over the interval
Worked example
With the default values below, Baby Growth Tracker returns Gain per Day of 25.0. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Weeks agominimum 1 wks
- 4 wks
- Weight beforeminimum 0 kg
- 5.5 kg
- Weight nowminimum 0 kg
- 6.2 kg
- Length beforeminimum 0 cm
- 58 cm
- Length nowminimum 0 cm
- 62 cm
Results
- Gain per Day
- 25.0 g
- Gain per Week
- 175.0 g
- Length per Month
- 4.35 cm
- Weight Change
- 12.73%
Step by step
- 1Values used
- 2Baby Growth Tracker
- 3Gain per Day= 25.0 g
- 4Gain per Week= 175.0 g
- 5Length per Month= 4.35 cm
- 6Weight Change= 12.73
Assumptions and limits
- The result is derived only from the 5 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Baby Growth Tracker calculated?
Gain = weight change / days between; length per month = change / months Weight gain is spread over the days between measurements and length growth is projected monthly, giving clear per-period rates.
Why does Baby Growth Tracker matter?
Velocity matters more than a single point, so tracking rates between visits reveals steady or concerning growth early.
What values do I need to enter?
This calculator takes 5 inputs: Weeks ago, Weight before, Weight now, Length before, Length now. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.