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Both calculators run independently — change the inputs on either side to compare results.

Fetal Growth Percentile Calculator

Estimates fetal weight from ultrasound biometry (BPD, HC, AC, FL) and plots it against gestational-age percentiles. Used by clinicians and expectant parents to detect growth restriction or macrosomia.

Biparietal Diameter (BPD) (mm)

Head Circumference (HC) (mm)

Abdominal Circumference (AC) (mm)

Femur Length (FL) (mm)

Fill in the required fields to see your result.

Pregnancy

Pregnancy Sleep & Rest Calculator

Calculate how many hours of sleep you should aim for each night based on your trimester, work demands, sleep quality, and current symptoms. Helps you plan rest during a physically demanding time.

Current Trimester

Pre-Pregnancy Sleep Hours (hours)

Work Schedule

Current Sleep Quality

Physical Symptoms

Fill in the required fields to see your result.

Key differences

	Fetal Growth Percentile Calculator	Pregnancy Sleep & Rest Calculator
Category	Pregnancy	Pregnancy
Inputs required	4	5
Result	Estimated Fetal Weight (grams)	Recommended Sleep Duration (hours)
What it does	Estimates fetal weight from ultrasound biometry (BPD, HC, AC, FL) and plots it against gestational-age percentiles. Used by clinicians and expectant parents to detect growth restriction or macrosomia.	Calculate how many hours of sleep you should aim for each night based on your trimester, work demands, sleep quality, and current symptoms. Helps you plan rest during a physically demanding time.