BMI Result: 5ft 1in, 121 lbs (BMI 22.9) - Female
According to CDC and WHO standards, a BMI of 22.9 is classified as Normal.
A female who is 5ft 1in tall and weighs 121lbs has a BMI of 22.9, which falls into the Normal category used by the CDC and WHO for adults.
| Category | BMI Range |
|---|---|
| Underweight | < 18.5 |
| Normal | 18.5 – 24.9 |
| Obese | ≥ 30 |
Healthy weight range for 5ft 1in: 98 lbs – 132 lbs
Metric: 154.9 cm, 54.9 kg
📏 Healthy waist circumference for your height: 30" – 35" (below 35" for female)
So you're 5ft 1in and weigh 121lbs. Your BMI is 22.9, which falls into the Normal category according to CDC and WHO standards. Let's break down what this means for your health.
Adjust Your Numbers
Change your height or weight to see how your BMI changes.
Understanding Your BMI
A BMI in the 18.5-24.9 range is considered healthy by CDC and WHO standards. This range is associated with the lowest risk of cardiovascular disease and type 2 diabetes.
What This Means for Your Height
For women under 5ft 2in, waist-to-height ratio is particularly important. Research suggests that even at a normal BMI, a waist-to-height ratio above 0.5 may indicate increased health risks.
Weight & Threshold
Gaining approximately 11.1 lbs would bring your BMI to 25, the start of the next category.
⬆️ Gaining approximately 11.1 lbs would put you in the Overweight BMI range.
⬇️ Losing approximately 23.3 lbs would bring you to the Underweight BMI threshold.
Waist & Health
The CDC recommends that non-pregnant women keep waist circumference below 35 inches. A waist-to-height ratio below 0.5 is also associated with lower health risks.
Age Context
For adults 45-64, metabolic health becomes increasingly important. At 52 years old, a woman at 5ft 1in and 121lbs has a BMI of 22.9, which falls into the Normal category.
For adults in this age range, maintaining stable weight and regular physical activity is key to preserving metabolic health.
👉 Calculate your Body Fat Percentage for a more complete health assessment.
👉 Try our Athlete BMI Calculator if you have higher muscle mass.
Health Analysis
Recommendations
General Health
A BMI of 22.9 is within the normal range defined by the CDC and WHO. Staying within this range is generally associated with lower rates of chronic conditions compared to higher or lower BMI categories.
Monitoring
In addition to BMI, pay attention to waist circumference. The CDC recommends females stay under 35 inches. Regular tracking of your measurements over time provides the most useful insight into your health trends.
Next Steps
If you're concerned about your weight or body composition, a healthcare provider can offer personalized guidance based on your full health profile.
Frequently Asked Questions
What else should I track besides BMI for a 5ft 1in woman?
Is 121lbs overweight for a 5ft 1in woman?
How does a BMI of 22.9 affect health for a 5ft 1in woman?
How common is a BMI of 22.9 for a 5ft 1in woman?
Related Tools & Articles
💡 About this calculation: BMI = (121 × 703) ÷ (61 × 61) = 22.9 | Metric: 154.9 cm, 54.9 kg
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Published: 2026-07-02