Simple calculators for health, fitness, and building things with your hands.
How many calories do you actually burn? Calculate your basal metabolic rate and total daily energy expenditure.
Try it → LIVE 🏋️Estimate your max lift from any rep range. Supports Epley, Brzycki, and Lombardi formulas.
Try it →How much water should you drink? Personalized daily target based on weight, activity, and climate.
Hit your protein, carb, and fat targets. Split macros by meal count and see grams per meal.
How much concrete for your slab, footing, or post hole? Cubic yards with 10% waste factor built in.
Try it →How many gallons for your room? Enter dimensions, doors, and windows — get the exact amount.
Calculate board feet for your woodworking project. Price per board foot included.