Free Baby Calculators & Tools
Free baby calculators for newborn weight change, formula mixing, developmental leaps, growth spurts and sleep regressions. No sign-up, works in your browser.
- Corrected age calculator
- Postpartum recovery checklist
- Newborn essentials checklist
- Baby safety checklist
- Baby eye color predictor
- Newborn poop color chart
- Newborn vision simulator
- Baby bath temperature guide
- Night-light picker
- Solids portion guide
- Growth spurt calculator
- Toddler shoe size estimator
- Diaper calculator
- Breast pump flange size
- Room comfort checker
- Tummy time plan
- Baby milestones checklist
- Newborn weight loss calculator
- Growth velocity estimator
- Formula scoop calculator
- Mid-parental height calculator
- Teething timeline calculator
- Baby feeding calculator
- Nap schedule calculator
- Baby growth percentile calculator
- Developmental leaps calculator
- Sleep regression calculator
Are these tools free to use?
Yes. Every tool on this page is free to use, with no sign-up required. They run right in your browser.
Are the calculators a substitute for medical advice?
No. The tools give quick estimates and general guidance for everyday planning. They aren't medical advice — always check with your pediatrician for health decisions.
Do I need to create an account?
No account is needed to use the tools. For ongoing tracking of feeds, sleep, diapers, and growth, you can use the Nurtura Daily app.
How often are new tools added?
We add and refine tools regularly based on what parents find useful. Check back, or open the app to see the latest.