📊 Track Your BMI. Keep Your Data.
Free private health calculators and a personal weight journal. No accounts. No cloud. No BS.
Free Calculators
BMI Calculator
Body Mass Index with trend tracking and export.
Body Fat Calculator
Navy method estimate from measurements.
BMR Calculator
Basal Metabolic Rate using Mifflin-St Jeor.
Calorie Calculator
Daily calorie needs based on your goals.
Ideal Weight
Compare Devine, Robinson, Miller, Hamwi.
WHtR Calculator
Waist-to-Height Ratio health indicator.
From the Blog
Real stories, real data, real struggles. By Alex.
Summer Heat Workout Weight Fluctuation
I Gained Four Pounds After a Single Run. The Heat Did It. Monday morning. 6:30 AM. I stepped on the scale before my run. 174.2 pounds. I did five mile...
Alcohol Is Sabotaging My Weight Loss
I love beer. IPAs specifically. The hoppier, the better. There's something deeply satisfying about a cold beer after a long day of debugging code. It'...
Why My Weight Fluctuates Every Day
Monday: 174.2 lbs. Tuesday: 176.8 lbs. Wednesday: 173.5 lbs. Thursday: 175.1 lbs. If I didn't know better, I'd think my scale was broken. Or that I wa...
Why I Don't Trust Smart Scales
I own a smart scale. It cost me eighty dollars and promised to track not just weight, but body fat percentage, muscle mass, bone density, water percen...
Why Gym Scales Never Match My Home Scale
I weigh 174.2 pounds on my home scale. I go to the gym, use their scale, and it says 176.8. Which one is right? I used to think the gym scale was more...
Why BMI Is Broken for Athletes
I used to train with a guy named Mike at the gym near my apartment in Denver. Mike is 5'10