Alcohol Units Calculator
Estimate UK alcohol units from drink volume, alcohol by volume (ABV), and number of servings.
5 min read Read article
Calculators
Calculators
Decision-support tools for sizing, cost, capacity, runtime, ownership, and other practical planning questions.
BMI Calculator
Estimate body mass index from weight and height using the standard metric BMI formula. This screening measure does not diagnose health conditions or account for body composition.
5 min read Read article
BMR Calculator
Estimate basal metabolic rate (BMR), the approximate number of calories your body uses at rest each day, with the Mifflin–St Jeor equation. Enter age, height, weight, and the equation's sex category. This estimate is not a measure of total daily energy use or an individual nutrition prescription.
5 min read Read article
Body Surface Area Calculator
Estimate body surface area in square meters from height and weight using the Mosteller formula. This general estimate is not a clinical assessment.
5 min read Read article
Caffeine Intake Calculator
Estimate your daily caffeine intake by adding the caffeine from each drink or food you consume. Enter the number of servings and caffeine per serving for up to three items.
6 min read Read article
Daily Calorie Needs Calculator
Estimate daily energy needs from age, height, weight, sex, and activity level using the Mifflin–St Jeor equation and an activity multiplier. This is a general estimate, not a medical assessment.
6 min read Read article
Calorie Cycling Weekly Average Calculator
Estimate a weekly average calorie target from two daily calorie targets and the number of days assigned to each. The remaining days use the average of the two targets, making the schedule explicit when the selected days do not fill a full week.
5 min read Read article
Calorie Deficit Calculator
Estimate the daily calorie gap between your estimated maintenance intake and a chosen calorie target. This arithmetic tool does not estimate maintenance calories or provide a weight-loss plan.
5 min read Read article
Calorie Surplus Calculator
Estimate a daily calorie target by adding a chosen surplus to your estimated maintenance intake. This worksheet uses your maintenance estimate as supplied and does not calculate it.
5 min read Read article
Carb Intake Target Calculator
Estimate a daily carbohydrate target from your chosen daily calorie target and the share of calories you want to allocate to carbohydrates. This is a planning estimate, not individualized nutrition advice.
5 min read Read article
Carbohydrate Calories Calculator
Estimate calories from the grams of carbohydrate you enter using 4 calories per gram. This arithmetic estimate does not assess individual nutrition needs or the quality of a food.
5 min read Read article
Daily Fat Intake Calculator
Estimate a daily fat intake target in grams from a chosen daily calorie target and the share of calories allocated to fat. This is a tracking estimate, not an individualized nutrition prescription.
5 min read Read article
Daily Fluid Total Calculator
Calculate your average daily fluid intake in milliliters from water and other drinks over a chosen number of days.
5 min read Read article
Daily Water Intake Calculator
Estimate a daily fluid target in milliliters using body weight and self-selected activity and climate adjustments. This simple planning estimate is not a medical recommendation.
5 min read Read article
Exercise Session Time Calculator
Estimate total exercise session time from the number of sets, time per set, breaks, and time per break.
5 min read Read article
Fasting Window Calculator
Estimate the fasting and eating window lengths in a 24-hour day from your chosen fasting duration. This calculator describes time intervals only and does not assess whether fasting is appropriate for you.
6 min read Read article
Fat Calories Calculator
Estimate calories from dietary fat using grams of fat and the standard 9 calories per gram conversion. This is a simple food-energy calculation, not a daily nutrition target.
6 min read Read article
Daily Fat Intake Calculator
Estimate grams of fat per day from your daily calorie target and the percentage of calories you want to come from fat. This is a planning estimate, not an individualized nutrition recommendation.
6 min read Read article
Daily Fiber Intake Calculator
Estimate your daily fiber intake from foods you have tracked by adding the fiber amounts shown on their labels or in your food log. This is a tracking total, not a personalized intake target.
5 min read Read article
Food Calorie Total Calculator
Add the calorie values of foods and the number of servings to estimate the total calories in a meal or food log. This calculator uses the calorie amounts you provide and does not estimate calories from ingredients or nutrition labels.
5 min read Read article
Daily Food Fiber Total Calculator
Add the fiber grams from the foods you ate in a day to estimate your total dietary fiber intake. Enter each food's fiber amount from its label or a reliable nutrition source.
5 min read Read article
Glycemic Load Calculator
Estimate a food serving's glycemic load from its glycemic index and available carbohydrate amount. This arithmetic estimate is for a single food serving and does not account for the effects of a mixed meal or individual response.
5 min read Read article
Grams of Sugar to Teaspoons Converter
Convert a measured amount of sugar from grams to teaspoons using the standard approximation of 4 grams per level teaspoon. The result is an estimate because sugar type and measuring technique can affect volume.
5 min read Read article
Grams to Calories Converter
Estimate food energy from grams of protein, carbohydrates, and fat using the standard 4-4-9 calorie-per-gram factors.
5 min read Read article
Intermittent Fasting Timer
Estimate the start and end times of a daily eating window from the time your fast begins and the fasting duration. This simple clock-time calculation assumes the fasting period starts on the same day and uses a 24-hour clock.
5 min read Read article
Lean Body Mass Calculator
Estimate lean body mass from body weight and a user-supplied body fat percentage. The result is an arithmetic estimate, not a clinical measurement.
5 min read Read article
Macro Calculator
Estimate daily carbohydrate, protein, and fat targets from a calorie goal and chosen macro percentages. This is a planning worksheet, not a personalized nutrition prescription.
4 min read Read article
Meal Calorie Calculator
Estimate the calories in a meal by adding the calories from each ingredient, adjusted for the portion eaten.
5 min read Read article
Meal Fiber Total Calculator
Calculate the total dietary fiber in a meal by multiplying the number of servings by the fiber grams per serving. The estimate assumes every serving contains the same amount of fiber.
5 min read Read article
Meal Prep Batch Portion Calculator
Estimate how many equal portions a meal prep batch makes by dividing the batch volume in liters by the volume of one portion in liters.
6 min read Read article
Meal Prep Container Volume Calculator
Calculate the combined geometric volume of meal prep containers from their interior length, width, and height, plus the number of identical containers. Dimensions are entered in centimeters and the result is shown in cubic centimeters.
5 min read Read article
Meal Prep Ingredient Budget Calculator
Estimate the cost of an ingredient for meal prep by multiplying the quantity you plan to use by its price per unit. Enter both values in matching units and currency.
6 min read Read article
Meal Prep Portion Container Calculator
Estimate how many container-capacity equivalents your prepared food volume fills. Enter total food volume and the capacity of one container in liters. The result assumes the food is divided evenly and uses volume only, without accounting for headspace, settling, or food shape.
5 min read Read article
Net Carbs Calculator
Estimate net carbohydrates per serving by subtracting fiber and sugar alcohols from total carbohydrates. Enter grams for one serving; the result is an arithmetic estimate and may not match every labeling convention.
5 min read Read article
Nutrient Density Score Calculator
Compare foods by calculating nutrient points per 100 calories from fiber, protein, and selected vitamins or minerals. Enter the amounts in one serving and its calories; this simple score is for food comparison, not a complete measure of nutrition.
5 min read Read article
Party Drink Alcohol Total Calculator
Estimate the total grams of alcohol represented by a party’s drinks by multiplying the number of drinks by an assumed grams-per-drink value.
5 min read Read article
Percentage Weight Loss Calculator
Calculate the percentage of body weight lost between a starting weight and a current weight. Enter both weights in the same unit.
6 min read Read article
Protein Calories Calculator
Estimate the calories supplied by a known amount of protein using the standard energy value of 4 calories per gram. This is a simple nutrient-energy calculation, not a full meal or daily calorie estimate.
5 min read Read article
Protein Intake Calculator
Estimate a daily protein target by multiplying body weight by a user-selected protein target per kilogram. This is an arithmetic worksheet, not individualized nutrition advice.
5 min read Read article
Recipe Batch Servings Calculator
Calculate the total number of servings from a recipe batch size and the number of batches prepared.
5 min read Read article
Recipe Nutrition Per Serving Calculator
Estimate calories, protein, carbohydrates, and fat per serving from the totals you enter for a recipe. This transparent arithmetic worksheet assumes the ingredient totals are already known and divides each nutrient total by the number of servings.
5 min read Read article
Sleep Duration Calculator
Convert hours and minutes of sleep into a total number of sleep minutes. This simple arithmetic tool reports a duration only; it does not assess sleep quality or determine an individual sleep need.
5 min read Read article
Sodium Intake Calculator
Estimate your daily sodium intake by adding sodium from foods and drinks recorded in your food diary. Enter the sodium amount for each item in milligrams and the number of servings consumed.
5 min read Read article
Sodium to Salt Converter
Convert a sodium amount into its salt equivalent using the standard mass relationship. Enter sodium in milligrams to see the equivalent salt in grams.
5 min read Read article
Waist-to-Height Ratio Calculator
Calculate your waist-to-height ratio by dividing your waist circumference by your height using the same units. The result is a simple measurement for personal tracking, not a diagnosis.
5 min read Read article
Waist-to-Hip Ratio Calculator
Calculate waist-to-hip ratio by dividing your waist circumference by your hip circumference. Enter both measurements in the same unit.
5 min read Read article
Water Bottle Capacity Calculator
Calculate the combined capacity of multiple water bottles by multiplying the number of bottles by the capacity of each bottle in milliliters.
5 min read Read article
Weekly Bowel Movement Average Calculator
Calculate your average number of bowel movements per week from a total count recorded over one or more weeks.
5 min read Read article
Weight Gain Calorie Target Calculator
Estimate a daily calorie target for gradual weight gain using an adult resting-energy equation, an activity multiplier, and a selected daily calorie surplus. The result is a planning estimate, not a medical assessment.
5 min read Read article
Daily Calorie Target for Weight Loss
Estimate a starting daily calorie target by applying a modest percentage reduction to an estimated maintenance calorie intake. This is a planning estimate, not a clinical assessment or a guarantee of weight change.
5 min read Read article