Face Shape Calculator

Measure your face and see which common face shape you match.

Measurements

This helps distinguish rounded vs angular face shapes.

Results

Face shape
Length / cheekbones ratio
Width relationships

Enter all four measurements and chin type to see your likely face shape.

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Weight Gain Calculator

Estimate calories to gain weight safely. Set your goal rate and get daily surplus calories and weekly gain estimates.

mcg to IU Converter

Convert mcg to IU (and IU to mcg) for common vitamins. Choose vitamin type for accurate unit conversion.

Waist to Hip and Height Ratio Calculator

Calculate waist-to-hip and waist-to-height ratios. Check health risk ranges with quick measurements and results.

Maintenance Calorie Calculator

Calculate maintenance calories (TDEE) from BMR and activity. Know how many calories to maintain your current weight.

Harris-Benedict Calculator (Basal Metabolic Rate)

Use the Harris-Benedict equation to calculate BMR and estimate daily calories (TDEE) based on activity level.

BMR — Basal Metabolic Rate (Mifflin–St Jeor)

Calculate BMR using the Mifflin-St Jeor equation. Get your daily calorie needs based on age, height, weight, and sex.

Calorie Calculator

Calculate your daily calories (TDEE) with US goals like lose 1 lb/week or gain 0.5 lb/week. See weekly change and targets instantly.

mmol/L to mg/dL Calculator

Convert mmol/L to mg/dL (or mg/dL to mmol/L) instantly using molar mass. Includes glucose presets + custom molecules. Live, accurate, simple.

Blood Type Calculator

Estimate a child’s possible blood types from parents’ ABO and Rh factors. Get instant % chances for A, B, AB, O, Rh+ and Rh−.