Free construction & DIY calculators: get exact concrete, gravel, mulch, paint and drywall quantities (bags, cubic yards), plus cost estimators for driveways, decks, roofs, HVAC and remodels using real US prices. No signup.
SimpleBMI is a free BMI calculator that does more than show a number — it tells you your healthy weight range, how far you are from it, and what your score means. Plus body-fat, BMR/TDEE, ideal-weight, waist-to-height and a kids' BMI-for-age tool. No signup, mobile-first.
