Calculate Ideal Body Weight Instantly (Devine, Robinson & More)
Calculate your ideal body weight using multiple medical formulas including Devine, Robinson, Miller, and Hamwi methods. Get personalized recommendations based on height, age, and gender.
How to Use Ideal Weight Calculator
How to Use the Ideal Weight Calculator
Step 1: Enter Your Age
- Input your current age in years
- Age range: 18-100 years
- Age is used for personalized recommendations
Step 2: Select Your Gender
- Choose Male or Female
- Different formulas are used for each gender
- Gender affects ideal weight calculations
Step 3: Enter Your Height
- Choose your preferred unit: Centimeters (cm), Inches (in), or Feet (ft)
- Enter your height in the selected unit
- For feet, use decimal format (e.g., 5.7 for 5'7")
Step 4: View Results
The calculator will automatically display:
- Average Ideal Weight: Mean of all formulas
- Individual Formula Results: Devine, Robinson, Miller, and Hamwi
- Healthy Weight Range: Based on BMI 18.5-24.9
- Personalized Interpretation: Age-specific recommendations
Understanding the Results
Medical Formulas
- Devine Formula (1974): Most widely used in medical settings for drug dosing
- Robinson Formula (1983): Updated version of Devine with adjusted coefficients
- Miller Formula (1983): Alternative modern approach with different baseline
- Hamwi Formula (1964): Classic clinical formula still used today
Healthy Weight Range
Based on BMI (Body Mass Index) between 18.5 and 24.9, which is associated with lowest health risks for most people.
Using Your Results
- Use the average as a general target
- Consider the healthy weight range as your optimal zone
- Individual formulas may vary - this is normal
- Muscle mass, frame size, and body composition matter more than the number
Tips for Best Results
Accurate Measurements
- Measure height without shoes in the morning
- Stand straight against a wall for best accuracy
- Use consistent units throughout
Interpreting Your Ideal Weight
- These are guidelines, not absolute targets
- Athletic individuals may weigh more due to muscle
- Older adults may benefit from slightly higher weights
- Consider body composition, not just weight
Setting Realistic Goals
- Aim for gradual, sustainable changes
- Focus on healthy habits, not just numbers
- Combine healthy eating with regular exercise
- Track trends over time, not daily fluctuations
Common Use Cases
Health Assessment
- Compare current weight to ideal range
- Identify if weight change is recommended
- Set realistic weight goals
Fitness Planning
- Determine target weight for training
- Track progress toward ideal range
- Adjust nutrition and exercise plans
Medical Reference
- Understand weight recommendations from doctors
- Calculate medication dosing weights
- Assess health risk factors
Frequently Asked Questions
Most Viewed Tools
TOTP Code Generator
Generate time-based one-time passwords from a TOTP secret key. Enter your base32 secret, choose a period and digit length, and get the current and next codes with a live countdown timer. Useful for testing and debugging 2FA integrations.
Use Tool →JSON to Zod Schema Generator
Generate Zod validation schema code from a JSON sample object. Infers z.string(), z.number(), z.boolean(), z.array(), z.object(), and z.null() types automatically. Handles nested objects, arrays of objects with optional field detection, and outputs copy-ready TypeScript with import and z.infer type alias.
Use Tool →JSONL / NDJSON Formatter
Format, validate, and inspect JSON Lines (JSONL) and NDJSON files. Validates each line individually, reports parse errors by line number, outputs compact JSONL or a pretty-print preview, and lets you download the cleaned file.
Use Tool →Secret and Credential Scanner
Scan pasted text, code, or config files for accidentally exposed API keys, tokens, passwords, and private keys. Detects 50+ secret types across AWS, GitHub, Stripe, OpenAI, and more — all client-side, nothing leaves your browser.
Use Tool →TLS Cipher Suite Checker
Check TLS protocol version compatibility and cipher suite strength ratings against current best practices. Supports IANA and OpenSSL cipher names — rates each suite as Strong, Weak, or Deprecated and explains why.
Use Tool →Password Entropy Calculator
Calculate the information-theoretic bit entropy of any password or API key. Detects character set pools automatically, shows the total number of possible combinations, and estimates crack time across five attack scenarios from rate-limited web logins to GPU cracking clusters.
Use Tool →TOML Config Validator
Validate TOML configuration file syntax and report errors with line numbers. Paste any TOML content — Cargo.toml, pyproject.toml, config.toml — and instantly see a green checkmark with key counts and structure stats, or a precise error message pointing to the exact line. Includes a collapsible JSON structure preview to confirm what was parsed.
Use Tool →Content Security Policy Generator
Build Content Security Policy headers interactively. Toggle directives like script-src, style-src, and img-src, select allowed source tokens, and add custom origins. Instantly outputs your CSP as an HTTP header, meta tag, Nginx directive, or Apache header.
Use Tool →Related Health & Wellness Tools
BMI Calculator
FeaturedCalculate your Body Mass Index and health category
Use Tool →Heart Rate Zone Calculator
Calculate target heart rate zones for exercise training. Get personalized HR zones for fat burn, cardio, anaerobic, and peak performance based on age, resting heart rate, and fitness level.
Use Tool →Protein Calculator
Calculate your daily protein needs based on weight, activity level, and fitness goals. Get personalized recommendations for muscle gain, fat loss, or athletic performance with meal distribution guidance.
Use Tool →Water Intake Calculator
Calculate your daily water intake needs based on weight, activity level, and climate. Get personalized hydration recommendations in liters, ounces, cups, and glasses.
Use Tool →BMR Calculator
Calculate your Basal Metabolic Rate (BMR) - the calories your body burns at complete rest. Uses the Mifflin-St Jeor equation for accurate BMR calculation.
Use Tool →Body Fat Percentage Calculator
Estimate body fat percentage using the US Navy method with simple body measurements. Calculate fat mass, lean mass, and understand your body composition category.
Use Tool →Running Pace Calculator
Calculate running pace, speed, and finish times. Get pace per km/mile, predicted race times, and split times. Perfect for runners training for 5K, 10K, half marathon, or marathon.
Use Tool →Calorie Calculator
Calculate daily calorie needs based on age, weight, height, and activity level. Get personalized calorie goals for weight loss, maintenance, or weight gain using the Mifflin-St Jeor equation.
Use Tool →Share Your Feedback
Help us improve this tool by sharing your experience