Full library

All LifeViora Calculators

Every free calculator on LifeViora, grouped by category. Pick a tool below or use the search bar in the header.

Body & Weight

Check your Body Mass Index and see which healthy-weight band you fall into.

Estimate your body fat percentage using the U.S. Navy tape-measure method.

See an estimated healthy weight range based on four trusted formulas.

Estimate the daily calories you need to maintain, lose or gain weight.

Find your Basal Metabolic Rate — the calories you burn at complete rest.

Get a personalised daily water target based on your weight and activity.

Turn your calorie target into a daily protein, carb and fat breakdown.

Find your ideal daily protein target based on your weight and goal.

Find the best bedtime or wake-up time based on 90-minute sleep cycles.

Calculate your exact age in years, months and days, plus your next birthday.

Estimate your due date from your last period or conception date.

Estimate your fertile window and ovulation day from your cycle.

Find your maximum heart rate and personalised training zones.