Calculator inputs
Example data table
| Profile | Goal | Target kcal | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| Female, 28y, 165cm, 62kg | Maintain, Moderate, Mixed | ≈ 2,050 | ≈ 105g | ≈ 255g | ≈ 64g |
| Male, 35y, 178cm, 80kg | Lose, Light, Strength | ≈ 2,050 | ≈ 160g | ≈ 210g | ≈ 62g |
Formula used
- BMR (Mifflin-St Jeor): Men = 10×kg + 6.25×cm − 5×age + 5; Women = 10×kg + 6.25×cm − 5×age − 161.
- TDEE: TDEE = BMR × Activity Factor.
- Goal Calories: Goal = TDEE + Goal Adjustment (e.g., −500 for steady loss).
- Protein: g/day = kg × (1.0 to 2.2), adjusted by goal and training.
- Fat: fat calories = Goal Calories × 27–30%; fat grams = fat calories ÷ 9.
- Carbs: remaining calories ÷ 4 after protein and fat.
- Fiber: ≈ 14g per 1000 kcal.
- Water: ≈ 35 ml/kg plus training add-on.
These estimates support planning; adjust using weekly progress trends.
How to use this calculator
- Enter age, height, weight, activity, and training style.
- Select your goal and vegetarian style, then choose meals/day.
- Optionally add foods to avoid to tailor meal suggestions.
- Press Submit to see results above the form.
- Follow targets for 10–14 days, then review progress.
- Download CSV or PDF to save and share.
Energy estimation and activity factors
Daily energy planning starts with an estimate of basal metabolic rate. This calculator uses the Mifflin‑St Jeor equation, then applies an activity factor between 1.2 and 1.9. The factors represent sedentary routines, light training, moderate schedules, active weeks, and very active lifestyles. The result is a practical estimate of total daily energy expenditure for meal planning.
Goal adjustments and rate control
Goal calories are adjusted in measured steps to reduce guesswork. A steady loss option subtracts about 500 kcal per day, while a slower loss subtracts 250 kcal. Slow gain adds around 300 kcal, and faster gain adds 500 kcal. These increments help you monitor weekly scale trends, energy levels, and gym performance without drastic swings.
Macro targets and gram conversion
Macronutrients are converted into daily grams to make the plan actionable. Protein is calculated from bodyweight and training style, commonly 1.0 to 2.2 grams per kilogram. Cutting phases, strength training, and older adults receive higher targets. Fat is set near 27–30% of calories for satiety and vitamin absorption. Carbohydrates fill remaining calories for training fuel.
Protein distribution and food choices
Vegetarian success improves when protein is spread across meals. The calculator provides a per‑meal average across 3 to 6 meals, making distribution simple. Choose beans, lentils, tofu, tempeh, dairy, or eggs depending on your diet style. Mixing grains with legumes improves amino acid coverage, supporting recovery and lean mass goals. Pair higher‑protein meals around workouts when possible.
Fiber and hydration guidance
Fiber and hydration targets support digestion, appetite control, and overall comfort. Fiber follows the 14 grams per 1000 kcal guideline, so 2000 kcal suggests about 28 grams. Water is estimated at roughly 35 milliliters per kilogram plus a training add‑on of 350 to 500 milliliters for active routines. These targets complement high‑fiber plant foods and reduce fatigue from under‑hydration.
Micronutrients and progress review
Micronutrients influence long‑term outcomes and consistency. Vegan patterns often require reliable vitamin B12 sources, and many vegetarians benefit from iodine and omega‑3 attention. Iron and zinc needs can be supported with legumes, seeds, fortified foods, and smart pairing. Combine plant iron with vitamin C foods for better absorption. Review progress every 10–14 days and adjust calories by 100–200 as needed steadily steadily steadily steadily steadily steadily steadily steadily steadily steadily steadily steadily steadily.
FAQs
How accurate are the calorie targets?
They are starting estimates based on your inputs and standard activity factors. Track two weeks of weight trend and training performance, then adjust by 100–200 kcal to match real outcomes.
Which vegetarian proteins help hit the target?
Use lentils, beans, tofu, tempeh, Greek yogurt, cottage cheese, eggs, and fortified soy products. Combine legumes and grains over the day for balanced amino acids.
Why does fat stay near 27–30%?
That range supports satiety, hormones, and absorption of fat‑soluble vitamins. It also keeps the plan flexible while leaving enough calories for protein and training carbs.
How should I time carbs for workouts?
Place more carbohydrates in the meal before and after training. This supports performance, recovery, and adherence, especially when calories are reduced for fat loss.
What if my meals per day changes?
The daily targets remain the same. Recalculate per‑meal averages by dividing protein, carbs, and fat by your new meal count, then distribute across your schedule.
Do I need supplements on a plant‑based plan?
It depends on your food choices. Vegan diets typically require B12, and many people benefit from iodine and omega‑3 planning. Consult a clinician for individualized needs.