yCalculator

Pregnancy Weight Gain Calculator

Last updated: April 2026

Unit system

Pregnancy type

cm
kg
kg

Recommended total pregnancy weight gain

25-35 lb

11.3-15.9 kg

Pre-pregnancy BMI

22

BMI category

normal

Current gain

22 lb / 10 kg

Status

Below recommended total range

Medical note

This calculator is an estimate only. Pregnancy weight guidance should be discussed with a qualified healthcare professional.

Related calculators:

  • Pregnancy Calculator
  • Due Date Calculator
  • BMI Calculator
  • Healthy Weight Calculator

How much weight should you gain during pregnancy?

Recommended pregnancy weight gain depends on pre-pregnancy BMI and whether the pregnancy is singleton or twins.

How pre-pregnancy BMI is used

Pre-pregnancy BMI groups weight status into underweight, normal, overweight, or obese categories. Each category has a different recommended total gain range.

Singleton vs twin pregnancy

Twin pregnancy recommendations are higher than singleton pregnancy recommendations because nutritional and growth needs differ.

Limitations

Individual guidance can differ based on health history, pregnancy progression, and clinical context. Confirm weight guidance with a qualified healthcare professional.

What does this mean?

This calculator is designed to help you understand the likely number before you make a decision or start an application.

Your result should be checked against official UK guidance, especially if your circumstances include dependants, exemptions, prior leave, or a complex immigration history.

Treat the figure as a planning tool rather than legal advice. Where the answer affects an application deadline or major payment, speak to an authorised adviser.

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