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2021 Rankings

Best Pregnancy Calculators

 Best Pregnancy Calculators illustration
Are you pregnant and not sure how far along you are? A pregnancy calculator can help. It calculates the development of an unborn child by measuring their gestational age, estimates due date, baby weight, and shows how many weeks pregnant the user is. Start using one now!

67 service ranked

Our ranking methodology

# 1
Baby Center Due Date Calculator logo

Baby Center Due Date Calculator

5

5,000 reviews

Custom

Based on Last Period

Based on Conception Date

Based on Due Date

Set Last Period Date

Pregnancy Calendar

Week-by-Week,

Trimester

# 2
What to Expect Pregnancy Due Date Calculator logo

What to Expect Pregnancy Due Date Calculator

4.5

5,400 reviews

Custom

Based on Last Period

Based on Conception Date

Based on Due Date

Set Last Period Date

Pregnancy Calendar

Week-by-Week,

Trimester

# 3
Flo Due Date Calculator logo

Flo Due Date Calculator

4.4

5,400 reviews

Custom

Based on Last Period

Based on Conception Date

Based on Due Date

Set Last Period Date

Pregnancy Calendar

Monthly

# 4
The Wonder Weeks Due Date Calculator logo

The Wonder Weeks Due Date Calculator

4.2

4,233 reviews

Custom

Based on Last Period

Based on Conception Date

Based on Due Date

Set Last Period Date

Pregnancy Calendar

Week-by-Week

# 5
SneakPeekTest Pregnancy Due Date Calculator logo

SneakPeekTest Pregnancy Due Date Calculator

2.9

340 reviews

Custom

Based on Last Period

Based on Conception Date

Based on Due Date

Set Last Period Date

Pregnancy Calendar

Week-by-Week,

Trimester

# 6
Calculators.org Pregnancy Calculator logo

Calculators.org Pregnancy Calculator

2.9

Free

Based on Last Period

Based on Conception Date

Based on Due Date

Set Last Period Date

Pregnancy Calendar

Week-by-Week

# 7
Emma's Diary Due Date Calculator logo

Emma's Diary Due Date Calculator

2.7

Free

Based on Last Period

Based on Conception Date

Based on Due Date

Set Last Period Date

Pregnancy Calendar

Week-by-Week,

Trimester

# 8
Mother & Baby Pregnancy Due Date Calculator logo

Mother & Baby Pregnancy Due Date Calculator

2.7

Custom

Based on Last Period

Based on Conception Date

Based on Due Date

Set Last Period Date

Pregnancy Calendar

Week-by-Week,

Trimester

# 9
Hirslanden Pregnancy Calculator logo

Hirslanden Pregnancy Calculator

2.7

Custom

Based on Last Period

Based on Conception Date

Based on Due Date

Set Last Period Date

Pregnancy Calendar

Week-by-Week

# 10
Future Baby Pregnancy Calculator logo

Future Baby Pregnancy Calculator

2.6

Custom

Based on Last Period

Based on Conception Date

Based on Due Date

Set Last Period Date

Pregnancy Calendar

Week-by-Week

You’re seeing 10 of 67 Best Pregnancy Calculators

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