Fetal PFT Calculator
Calculate crown-rump length (CRL) and estimated fetal weight based on gestational age. Optimal for 8-12 weeks pregnancy.
Fetal pft Calculator
Calculate crown-rump length and estimated fetal weight based on gestational age
Gestational Age
Weeks
Days
Measurement Unit
Calculation Results
Your pft results will appear here
Translate Your Videos with AI& Reach Billions
No credit card required • 5 free minutes
How It Works
Simple steps to calculate fetal measurements!
Enter Gestational Age
Input the weeks and days of pregnancy (4-14 weeks optimal for CRL).
Select Measurement Unit
Choose millimeters (mm), centimeters (cm), or inches (in).
Get Fetal Measurements
View crown-rump length, estimated weight, and development stage.
Key Features
What makes our Fetal PFT Calculator special!
Accurate CRL Calculation
Based on established medical formulas for crown-rump length.
Estimated Fetal Weight
Calculates approximate weight based on gestational age.
Development Tracking
Shows current fetal development stage and progress.
Who Can Benefit
Our Fetal PFT Calculator helps various users:
Expecting Parents
Track early fetal development and growth milestones.
Medical Students
Learn about fetal measurements and growth patterns.
Obstetric Clinics
Quick reference for typical fetal measurements.
Ultrasound Technicians
Verify expected measurements during early scans.
Fitness Calculators
Spot On Accuracy!
"Matched exactly with my ultrasound measurements at 10 weeks."
Expecting Mother
Great Teaching Tool
"Perfect for demonstrating fetal growth patterns to my students."
Medical Professor
Reassuring Estimates
"Helped ease my mind about my baby's development between scans."
First-Time Parent
Clinic Approved
"Our midwives use this as a quick reference during consultations."
Clinic Manager
Frequently Asked Questions
1Is this Fetal PFT Calculator free?
Is this Fetal PFT Calculator free?
Yes, our Fetal PFT Calculator is completely free to use with no limitations.
2What is PFT in pregnancy?
What is PFT in pregnancy?
PFT stands for Crown-Rump Length (CRL), which is the measurement from the top of the baby's head (crown) to the bottom of the buttocks (rump). It's the most accurate way to date a pregnancy in the first trimester.
3How accurate are the calculations?
How accurate are the calculations?
The calculator uses established medical formulas for CRL and fetal weight estimation. Results are typically within 5-10% of actual ultrasound measurements, but individual variations can occur.
4What's the best time to measure CRL?
What's the best time to measure CRL?
CRL is most accurate between 8-12 weeks gestation. Before 7 weeks the embryo is too small, and after 13 weeks the fetal curvature makes measurements less reliable.
5Can this replace medical ultrasound?
Can this replace medical ultrasound?
No, this calculator provides estimates only. Always consult with your healthcare provider and rely on clinical ultrasound measurements for medical decisions.
6What formulas are used?
What formulas are used?
The calculator uses Hadlock formulas: CRL (mm) = exp(0.052 + 0.0003 * GA^2) for crown-rump length and EFW (g) = 10^(1.3596 + 0.0064 * CRL) for estimated fetal weight.
© 2025 VideoDubber.ai - All rights reserved.