For adults, healthy weight for age and height is best judged by BMI; use the chart below to see the weight span for your height.
People ask this in many ways, but the goal is the same: land in a weight range that fits your build and lowers health risk. Height sets the frame. Age shifts context a bit, since kids and teens use growth-chart percentiles and older adults may target the steadier end of the range. The tool that puts numbers on the page is body mass index (BMI). It isn’t perfect, yet it’s fast, cheap, and widely used in clinics. Below you’ll see practical ranges by height, plus how to adjust for life stages and body type without getting lost in jargon.
Healthy Weight By Height (Adults)
This table shows the “healthy weight” span for adults at different heights using BMI 18.5–24.9. Pick the row for your height to see the range in kilograms and pounds.
| Height (cm) | Healthy Weight (kg) | Healthy Weight (lb) |
|---|---|---|
| 150 | 41.6–56.0 | 92–124 |
| 155 | 44.4–59.8 | 98–132 |
| 160 | 47.4–63.7 | 104–141 |
| 165 | 50.4–67.8 | 111–149 |
| 170 | 53.5–72.0 | 118–159 |
| 175 | 56.7–76.3 | 125–168 |
| 180 | 59.9–80.7 | 132–178 |
| 185 | 63.3–85.2 | 140–188 |
| 190 | 66.8–89.9 | 147–198 |
How Much Should I Weigh According To Age And Height?
The short version: start with BMI, then adjust based on age group and body fat pattern. For adults, BMI 18.5–24.9 is the “healthy weight” band. For kids and teens, the right target is a BMI-for-age percentile between the 5th and less than the 85th. For older adults, the top half of the healthy range can feel steadier, while still keeping muscle and balance in view. You’ll find details for each group below.
How Much Should I Weigh For My Age And Height: What The Numbers Mean
BMI in plain terms. BMI is weight divided by height squared. In metric, plug kilograms and meters into the formula: BMI = kg / m². In U.S. units, use BMI = 703 × lb / in². The math spots where weight sits for a given frame. Adults 20+ use fixed cutoffs; kids 2–19 use percentiles that compare to peers of the same age and sex.
Adult cutoffs used in clinics. Underweight is below 18.5, healthy weight is 18.5–24.9, overweight is 25.0–29.9, and obesity is 30.0 or higher, with three classes at 30.0–34.9, 35.0–39.9, and 40.0+ (CDC adult BMI categories). You can check the official tables or use the CDC calculator if you want a quick cross-check.
Why Height Charts Help, But Don’t Tell The Whole Story
Charts translate BMI into something you can scan in seconds. That said, people aren’t one size. A lean powerlifter might show a higher BMI due to muscle. A person with a normal BMI can still carry most fat at the waist, which raises risk. Use the range as a starting line, then add context.
Waist And Body Fat Add Useful Context
Where fat sits matters. A waist size over about 102 cm (40 in) for men or over 88 cm (35 in) for women links to higher risk. If your waist is near those cut points, aim for the lower half of the weight band for your height. If your waist is comfortably under those values and you carry good muscle, the upper half can be fine.
Method: Find Your Range In Three Steps
- Measure height and weight accurately. Stand tall without shoes. Take weight on a stable scale, ideally in the morning.
- Do the quick BMI math. Use BMI = kg / m² or BMI = 703 × lb / in². Many phones have a calculator app that handles exponents. If you’re asking “how much should I weigh according to age and height?”, this step puts a number to it.
- Map BMI to the charts. Use the table above for adults. For children and teens, use a BMI-for-age tool and percentiles; a healthy track is from the 5th to less than the 85th percentile.
Kids And Teens: Targets Are By Percentile
Growth shifts fast between ages 2 and 19, so the right question isn’t “What weight?”, it’s “What percentile fits a healthy track for this age and sex?” Pediatric teams use BMI-for-age percentiles from growth charts. A healthy track is from the 5th to less than the 85th percentile. If you need a calculator, the CDC tool shows where a child lands and plots it on a chart.
Linking Ranges To Real Life
Athletes And Lifters. Muscle pushes BMI up without the same risk as fat. If you lift or train hard, use waist size, body-fat measures, and performance to fine-tune the target. A DEXA scan or a skinfold test adds clarity.
Pregnancy And Postpartum. The scale will move. Pre-pregnancy BMI guides weight gain ranges by trimester. After birth, aim for steady return into your pre-pregnancy band with a plan that keeps energy and milk supply in mind.
Older Adults. Past 65, staying steady, strong, and mobile beats hitting the exact middle of the chart. Keep protein intake up, keep lifting light weights, and aim to keep waist size in check.
How To Use The Numbers To Set A Personal Target
Pick a point inside your height’s band, then test it against waist size, energy, sleep, and lab results. A good target feels livable. If you’re near the top of the range and waist is high, drop the target by a few kilos. If you’re near the bottom and strength feels low, nudge up while building muscle.
How To Measure Waist Correctly
Stand relaxed. Find the top of the hip bone and the bottom of the ribs. Wrap a tape measure midway between those points, level all the way around, after a normal exhale. Read to the nearest half-centimeter or quarter-inch. Take two readings and average them. This gives a steadier number than a quick tug over bulky clothing.
Example: 170 Cm Adult
At 170 cm, the healthy band is 53.5–72.0 kg (118–159 lb). That spans many builds. A runner with a 76 cm waist may sit near 63 kg. A strength fan with broad shoulders and an 84 cm waist may sit near 70 kg. Both can be fine on labs and daily function.
Red Flags That Warrant A Check-In
Unplanned weight loss, rapid gain, swelling, shortness of breath, fainting, or chest pain deserve timely care. If growth stalls or leaps for a child, bring it up with the pediatric team. When weight changes don’t match intake or activity, a check can rule out hormone or medication issues.
What The Science Supports
BMI remains a simple screening tool in adult care and public health. It links to risk at a population level and aligns with outcomes in many large cohorts. Waist size adds extra signal, since fat stored deeper in the abdomen is more active metabolically. Pairing both measures gives a clearer picture than either alone.
Children And Teens: Percentiles At A Glance
| Percentile | Category | What It Means |
|---|---|---|
| < 5th | Underweight | Further review to check intake, growth pattern, or health issues. |
| 5th–<85th | Healthy Weight | Growth pattern fits the expected band for age and sex. |
| 85th–<95th | Overweight | Extra coaching on eating pattern, sleep, and daily movement. |
| ≥ 95th | Obesity | Team looks at habits and labs; family-based steps come next. |
Tools And References You Can Use
You can scan the official adult BMI categories and run a quick check with the child and teen BMI calculator. Both pages explain how results are grouped and what each band means.
DIY Calculations And Conversions
Metric
Measure height in meters and weight in kilograms. Compute BMI = kg / m². To find a target weight for a chosen BMI, rearrange: kg = BMI × m². For 1.70 m and a target BMI of 22, the math is 22 × 2.89 = 63.6 kg.
U.S. Units
Measure height in inches and weight in pounds. Compute BMI = 703 × lb / in². To invert it for a target: lb = BMI × in² / 703. For 67 inches and BMI 22, that’s 22 × 4489 / 703 ≈ 140 lb.
When The Chart Doesn’t Fit Well
Some groups need a second lens. People from certain backgrounds can show higher health risk at lower BMIs. A small-framed person may feel best near the lower half of the band. A broad-framed, muscular person may sit near the upper half. Use waist size, body-fat tools, and lab markers to set the final target.
How Often To Recheck Your Range
Run the numbers every few months, or after a clear change in routine, injury, meds, or training load. For kids and teens, growth spurts call for a fresh percentile check each year. For adults, a quick tape and a scale reading monthly keeps the trend visible. If the pattern drifts outside your chosen band, adjust sleep, meal rhythm, and movement first, then retest in two to four weeks.
Practical Takeaways
- BMI gives a fast way to size weight against height. Use the table to set your first target.
- Pair BMI with waist size and simple fitness checks. That combo steers risk better than one number.
- Kids and teens use BMI-for-age percentiles, not adult cutoffs.
- Pick a livable point inside your band, then track energy, sleep, and strength as you move toward it.
The phrase “how much should I weigh according to age and height?” shows up a lot in searches. Use the charts as a start, then shape the target with waist size, activity, and how you feel day to day. That blend lands closer to the weight that fits your build. Small, steady changes beat crash plans and last far longer for most.