Target calculation
Translate a selected adult BMI into a corresponding weight.
Target BMI and Weight Calculator
Use the Target BMI and Weight Calculator to calculate and interpret target weight.
Target weight
Enter your values, then calculate to see a verified result.
Reference range
How this result is calculated
A clear calculation path based on your inputs.
Inputs usedReview the information used for this result.
Full calculation and sourcesReview the equation, normalized inputs, assumptions, and version.
Versioned calculationFormula v1.0.0
Direction of change
The result compares the calculated target with your current weight.
Important limitation
A calculated target is not an individualized weight-loss plan.
Convert heightNormalize height to meters
170 cm = 1.70 mCalculate targetBMI × height²
22 × 2.89Compare weightTarget minus current weight
63.6 − 70.0 kgInterpretation
The selected BMI corresponds to .
The target is under adult BMI categories.
Discuss substantial or medically complex changes with a qualified professional.
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Report a calculation issue Target BMI and Weight Calculator: purpose and method
Calculates target weight, difference from current weight, and current BMI from height, current weight, and target BMI with visible method, validation, precision, and limitations.
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Related calculators and resources
Method and test recordFormula v1.0.0
- Recorded scope
- adult target-BMI arithmetic
- Publisher
- CalculatorGeek
- Recorded review date
- 2026-08-31
- Next source review
- 2027-08-31
- Definition fixtures
- 2 configured scenarios
- Published examples
- 2 shown below
Recorded method
No tool-specific review method has been recorded.
These records describe the published model and reference tests. A test-case count is not a certification of every possible input or an independent specialist review. Editorial policy
Known limitations
- A BMI-derived target is not a personal treatment or nutrition plan.
- BMI does not directly measure body composition.
Method sources
Latest model update
2026-08-31 - Created in the unified CalculatorGeek schema engine.
Reference inputs and expected results
Up to 12 examples from the configured definition fixtures are shown. Expected values use the stated output units; invalid inputs are intended to be rejected.
| Case | Inputs | Expected result |
|---|---|---|
| target BMI 22 | Height: 170 cm; Current weight: 70 kg; Target BMI: 22 bmi | Target weight: 63.6 kg; Difference from current weight: -6.4 kg; Current BMI: 24.2; classification: healthy |
| imperial equivalence | Height: 66.9291339 in; Current weight: 154.323584 lb; Target BMI: 22 bmi | Target weight: 63.6 kg; classification: healthy |
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On this page
Direct answer
Calculates target weight, difference from current weight, and current BMI from height, current weight, and target BMI with visible method, validation, precision, and limitations.
For the next related calculation, use the Healthy Weight Calculator. View the adult BMI-based reference range for a height.
How to use the calculator
- Identify the meaning and unit of height, Current weight, and Target BMI.
- Enter values without prematurely rounding them.
- Select Calculate and review target weight, Difference from current weight, and Current BMI.
- Check the method, assumptions, and limitations before using the answer.
To compare this result with another relevant method, open the Body Fat Calculator. Estimate body-fat percentage with a separate method.
Formula and methodology
Target weight = target BMI × height².
Inputs are validated and normalized before calculation. Working precision is retained until the visible output rule is applied.
Worked example
target BMI 22: Height: 170 cm; Current weight: 70 kg; Target BMI: 22 bmi. The expected result is Target weight: 63.6 kg; Difference from current weight: -6.4 kg; Current BMI: 24.2; classification: healthy.
Interpretation and limitations
- A BMI-derived target is not a personal treatment or nutrition plan.
- BMI does not directly measure body composition.
- Keep the stated units, assumptions, and population or jurisdiction with the result.
- Do not use a rounded display value as an exact input to another calculation.
Inputs, outputs and result meaning
Calculates target weight, difference from current weight, and current BMI from height, current weight, and target BMI with visible method, validation, precision, and limitations.
Inputs
- Height
- Supported units include centimeters (cm), meters (m), inches (in), feet (ft), and feet / inches (ft / in). The supported range is 0.9144 through 2.7432.
- Current weight
- Supported units include grams (g), kilograms (kg), and pounds (lb). The supported range is 25 through 450.
- Target BMI
- Supported units include Body Mass Index (BMI). The supported range is 10 through 60.
Outputs
- Target weight
- This is the primary result. It is displayed in kg. The visible value uses up to 1 decimal places according to the output rule.
- Difference from current weight
- It is displayed in kg. The visible value uses up to 1 decimal places according to the output rule.
- Current BMI
- The visible value uses up to 1 decimal places according to the output rule.
Target weight = target BMI × height². Keep the result label, unit, selected mode, and stated limitations together when sharing the answer.
Frequently asked questions
What does the Target BMI and Weight Calculator calculate?
Calculates target weight, difference from current weight, and current BMI from height, current weight, and target BMI with visible method, validation, precision, and limitations.
Which formula or method does the Target BMI and Weight Calculator use?
Target weight = target BMI × height².
How should I interpret the target weight?
Interpret target weight with its unit, method, assumptions, and supporting outputs.
Which inputs and units does the Target BMI and Weight Calculator support?
The supported fields are Height, Current weight, and Target BMI. Their visible labels, choices, units, and validation guidance define the accepted input.
What limitations or edge cases affect the Target BMI and Weight result?
A BMI-derived target is not a personal treatment or nutrition plan.
Sources and transparency
The sources define the method or interpretation context. Calculator fixtures verify ordinary, boundary, and invalid-input behavior; they do not create a professional recommendation.