How Much Life Insurance Do I Need? DIME Method Calculator
Free life insurance needs calculator using the DIME method – find out exactly how much coverage your family needs.
Health Calculators
BMI, calorie, age and fitness calculators
Pregnancy Due Date Calculator – Estimate Your Baby’s Arrival
Free pregnancy due date calculator using Naegele’s Rule. Enter your last period date to estimate your due date and current gestational age.
Waist to Height Ratio Calculator – WHtR Health Risk Guide 2026
Free Waist to Height Ratio Calculator. Enter your waist and height to find your WHtR score and health risk level — a better predictor than BMI.
Lean Body Mass Calculator – Find Your LBM (Boer & James Formula)
Free Lean Body Mass Calculator using Boer and James formulas. Enter your weight, height and gender to find your LBM and fat-free mass instantly.
Blood Alcohol Content (BAC) Calculator — Widmark Formula (2026)
Free BAC Calculator using the Widmark formula. Estimate your blood alcohol content by weight, drinks, gender, and time. Includes legal limit reference and sobering time.
Waist-to-Hip Ratio Calculator — WHR Chart and Health Risk (2026)
Free Waist-to-Hip Ratio Calculator. Enter waist and hip measurements to get your WHR score, health risk category, and comparison to WHO standards.
One Rep Max Calculator (1RM) — Epley and Brzycki Formula (2026)
Free 1RM Calculator using Epley and Brzycki formulas. Estimate your one rep max from any weight and rep count with a full training percentage table.
SPF Calculator – What SPF Sunscreen Do You Need? (2026 Guide)
Find out what SPF sunscreen you need based on your skin type, UV index, and outdoor time. Free SPF Calculator with sun protection guide and reapplicat
Baby Formula Cost Calculator – Monthly & Annual Cost (2026)
Calculate how much baby formula costs per month and per year with our free Baby Formula Cost Calculator. Compare brands and find ways to save on formu
Bra Size Calculator – Find Your Perfect Fit (Free 2026 Guide)
Use our free Bra Size Calculator to find your correct bra size in US, UK, and EU sizing. Includes measuring guide, sister sizes, and fitting tips for