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Calorie Calculator (TDEE) — Free Online Tool

Daily calorie needs using Mifflin-St Jeor formula

Calculate your daily calorie needs (TDEE) using the Mifflin-St Jeor equation. Factors activity level, age, sex, weight, height.

BMR (resting)
kcal/day at rest
TDEE (maintain)
kcal/day to stay same
Lose 0.5 kg/week
Lose 1 kg/week
Gain 0.5 kg/week
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Learn more

Free calorie calculator — BMR, TDEE, weight goals

Toololis Calorie Calculator uses the Mifflin-St Jeor equation to compute your Basal Metabolic Rate (BMR), Total Daily Energy Expenditure (TDEE), and calorie targets for losing or gaining weight.

How to use this tool

  1. 1

    Pick units

    Metric (cm/kg) or Imperial (ft·in/lb).

  2. 2

    Enter age, sex, weight, height

    Used for Mifflin-St Jeor BMR equation.

  3. 3

    Choose activity level

    From sedentary (desk job, no exercise) to extremely active (athlete training 2×/day).

  4. 4

    Read your numbers

    BMR (resting), TDEE (maintenance), and suggested intakes for weight loss / gain.

The Mifflin-St Jeor equation

Men
BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age + 5
Women
BMR = 10 × weight(kg) + 6.25 × height(cm) − 5 × age − 161
TDEE
TDEE = BMR × activity multiplier (1.2 to 1.9)

Frequently Asked Questions

What is BMR?
Basal Metabolic Rate — calories your body burns at rest (breathing, circulation, etc.). Typically 60-75% of total daily calories.
What is TDEE?
Total Daily Energy Expenditure — your full daily calorie burn including exercise and activity. TDEE = BMR × activity multiplier.
Which formula?
Mifflin-St Jeor equation — most accurate for the general population. Used by nutritionists and research studies since 1990.
How much should I eat to lose weight?
Create a 500-750 kcal/day deficit below TDEE for sustainable weight loss (0.5-0.75 kg per week). Aggressive deficits (1000+) risk muscle loss and metabolic slowdown.
How much to gain?
Add 300-500 kcal above TDEE for lean muscle gain. Pair with strength training for 0.25-0.5 kg/week gain (mostly muscle at proper surplus).
Is this medical advice?
No. This is a calculator, not medical advice. Consult a registered dietitian or physician for personalized nutrition plans, especially if you have health conditions.

Key Takeaways

  • Calorie Calculator (TDEE) is a free, browser-based calculator tool — daily calorie needs using mifflin-st jeor formula.
  • No signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Calorie Calculator (TDEE)

  1. Open the tool: Launch Calorie Calculator (TDEE) on Toololis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Calorie Calculator (TDEE) — Quick Facts

Price
Free — no limits, no watermarks, no paywalls
Privacy
100% browser-based — no data is sent to any server
Platform
Any modern browser on desktop, tablet, or mobile
Category
Calculator Tools on Toololis
Offline
Works offline after first visit (Progressive Web App)
FeatureDetails
ToolCalorie Calculator (TDEE)
CategoryCalculator
Signup RequiredNo
File UploadNone — processed in browser
Mobile SupportFully responsive
CostFree forever

Why Use Calorie Calculator (TDEE)?

You should try Calorie Calculator (TDEE) for a quick, private way to daily calorie needs using mifflin-st jeor formula. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Privacy. This tool runs entirely in your browser. Your data is never uploaded to any server.