Health & Lifestyle
Health & Lifestyle Tools
Body Fat Percentage Calculator
Estimate body fat percentage, lean mass, and fat mass using US Navy formulas.
Lean Body Mass Calculator
Calculate lean body mass (LBM) and body fat mass percentage.
Ideal Body Weight Calculator
Estimate healthy body weight ranges based on height and frame.
Daily Calorie Intake Calculator
Determine maintenance, weight loss, or bulking calorie targets.
Daily Water Intake Calculator
Calculate daily hydration and water intake requirements.
Macronutrient Ratio Calculator
Distribute daily calories across protein, carbs, and fats.
Daily Protein Intake Calculator
Estimate target daily protein grams for muscle building and fitness.
TDEE Calculator
Calculate Total Daily Energy Expenditure and baseline metabolism.
One Rep Max (1RM) Calculator
Estimate maximum lift capacity for bench, squat, and deadlift.
Ovulation & Fertility Calculator
Estimate ovulation dates and peak fertile windows.
Target Heart Rate Zone Calculator
Determine cardio training heart rate zones for fat burn and peak endurance.
Waist-to-Hip Ratio Calculator
Assess body fat distribution and cardiovascular health risk.
Sleep Cycle & Bedtime Planner
Find optimal sleep cycles and bedtime wake-up windows.
Smoking Lifetime Cost Calculator
Calculate total money spent on cigarettes and future savings.
Running Pace & Finish Time Calculator
Calculate target running pace per mile or kilometer.
Steps to Calories Converter
Convert daily step counts to estimated calorie burn and miles walked.
Local-first by design
Every tool on this page runs entirely in your browser. Your files and data never leave your device — no uploads, no server processing, no tracking. Works offline after first load.