· health
Estimate your body fat from a few tape measurements, your waist alone, or your BMI, and see where it sits in the healthy range for your age and sex.
Health
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Estimate your body fat from a few tape measurements, your waist alone, or your BMI, and see where it sits in the healthy range for your age and sex.
Work out your body mass index from your height and weight, see where it falls on the adult BMI scale, and the healthy weight range for your height.
Work out how many calories you need a day to keep, lose or gain weight, using the 2023 National Academies equations, and see where that energy goes.
Convert text to camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, Title Case, UPPERCASE, lowercase and a URL slug, all at once.
Convert numbers between binary, octal, decimal and hex in your browser. Paste 255, 0xFF or 0b11111111 and get every base back, with no rounding.
Format and validate YAML in your browser, convert YAML to JSON, or paste JSON to get YAML. Errors show the line and column of the first problem.
Validate JSON in your browser and find the first syntax error by line and column, with a caret under the spot. Duplicate keys and trailing commas fail.
Convert text to snake_case, so words become lowercase and spaces become underscores. It all runs inside your browser, so your text stays on the device.
Generate placeholder text by paragraph, sentence or word, with control over length, vocabulary, truncation and an optional seed for repeatable output.
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Estimate your body fat from a few tape measurements, your waist alone, or your BMI, and see where it sits in the healthy range for your age and sex.
Work out your body mass index from your height and weight, see where it falls on the adult BMI scale, and the healthy weight range for your height.
Work out how many calories you need a day to keep, lose or gain weight, using the 2023 National Academies equations, and see where that energy goes.
Convert text to camelCase, PascalCase, snake_case, kebab-case, CONSTANT_CASE, Title Case, UPPERCASE, lowercase and a URL slug, all at once.
Convert numbers between binary, octal, decimal and hex in your browser. Paste 255, 0xFF or 0b11111111 and get every base back, with no rounding.
Format and validate YAML in your browser, convert YAML to JSON, or paste JSON to get YAML. Errors show the line and column of the first problem.