Water Intake Calculator
Estimate daily water intake recommendations.
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Enter age, sex, height, weight, and activity level to estimate basal metabolic rate (BMR) and daily maintenance calories (TDEE) with the Mifflin–St Jeor equation. See mild and standard weight loss or gain ranges. Metric and US units are supported. This is an educational estimate, not medical advice.
This tool provides a general estimate for educational purposes and is not medical advice. Consult a qualified healthcare professional for personal guidance.
Enter your details to estimate daily calorie needs.
This calories calculator is for educational purposes only and is not medical or nutrition advice. Individual needs vary with health conditions, medications, body composition, and goals. Consult a qualified healthcare professional before changing your diet or exercise routine.
Use the Calorie Calculator form near the top of this page. Enter the values you know, run the tool, and review the results panel. You can change inputs and run it again. Processing stays in your browser and is not uploaded to Utilnivo servers.
Example: open Calorie Calculator, enter a realistic set of inputs for your situation, and note the primary result. Change one input—such as an amount, rate, or option—and compare how the output changes so you can choose a scenario that fits your needs.
Basal metabolic rate (BMR) is estimated with the Mifflin–St Jeor equation from age, sex, height, and weight. Daily maintenance calories (TDEE) multiply BMR by an activity factor. Goal ranges subtract or add about 250–500 calories from maintenance. US units are converted to metric before calculation.
This tool provides a general estimate for educational purposes and is not medical advice. Consult a qualified healthcare professional for personal guidance.
Basal metabolic rate (BMR) uses the Mifflin–St Jeor equation from age, sex, height, and weight. Maintenance calories (TDEE) multiply BMR by an activity factor.
Mild loss and gain adjust maintenance by about 250 calories per day. Weight loss and gain adjust by about 500 calories per day. These are general planning ranges, not prescriptions.
No. Results are educational estimates only. Individual needs vary, and you should consult a qualified professional for personal guidance.