Formula and calculation method
Gain so far = current weight − pre-pregnancy weight. Remaining range = clinician-provided total gain range − gain so far.
User-entered clinician range; no weekly prescription is generated. Default range is an illustration in kilograms and should be replaced with your own clinician’s guidance and units.
How to use pregnancy weight gain calculator
- Set Measurement system by choosing the option that matches your calculation.
- Set Weight (kg or lb). The example below uses 70.
- Set Current weight (kg or lb). The example below uses 75.
- Set Pregnancy weeks. The example below uses 20.
- Set Clinician-provided total gain lower bound (kg or lb). The example below uses 11.5.
- Set Clinician-provided total gain upper bound (kg or lb). The example below uses 16.
- Select Calculate to update the result. Reset restores the illustrated inputs. Copy, print or download your own result if you need a record.
Worked example
Example inputs
- Measurement system
- Metric (kg, cm)
- Weight (kg or lb)
- 70
- Current weight (kg or lb)
- 75
- Pregnancy weeks
- 20
- Clinician-provided total gain lower bound (kg or lb)
- 11.5
- Clinician-provided total gain upper bound (kg or lb)
- 16
- Gain so far (selected unit)
- 5
- Lower total gain entered
- 11.5
- Upper total gain entered
- 16
- Remaining gain to lower bound
- 6.5
- Remaining gain to upper bound
- 11
- Pregnancy weeks entered
- 20
Factors affecting your result
User-entered clinician range; no weekly prescription is generated. Default range is an illustration in kilograms and should be replaced with your own clinician’s guidance and units.
Changing measurement system changes the scenario being evaluated. Adjust one input at a time when comparing results, keep a copy of the assumptions, and compare values using the same unit and period. A precise arithmetic result does not make an uncertain assumption precise.
Frequently asked questions
How does the pregnancy weight gain calculator work?
Gain so far = current weight − pre-pregnancy weight. Remaining range = clinician-provided total gain range − gain so far.
What inputs does Pregnancy Weight Gain Calculator need?
Enter measurement system, weight (kg or lb), current weight (kg or lb), pregnancy weeks, clinician-provided total gain lower bound (kg or lb), clinician-provided total gain upper bound (kg or lb). Choose values that correspond to the same situation and measurement convention.
How should I interpret the pregnancy weight gain calculator result?
User-entered clinician range; no weekly prescription is generated. Default range is an illustration in kilograms and should be replaced with your own clinician’s guidance and units.
Are my pregnancy weight gain calculator inputs uploaded?
No. The calculation runs in this browser. Favorites, recent tool names, theme and formatting preferences may be saved locally, but calculation inputs are not sent to a calculation server or stored by this website. Shared links do not include entered values.
Maintained by Calculators.buzz Editorial Team. Implementation date: . No professional credentials or clinical review are claimed. Read our methodology policy.