TDEE Calculator

About This Tool

Look, if you're trying to lose weight, gain muscle, or just not feel like you're guessing every time you step on the scale, you need to know your TDEE. That’s Total Daily Energy Expenditure—basically, how many calories your body burns in a day. Sounds fancy, but it’s not rocket science. This calculator takes your age, weight, height, gender, and activity level and gives you a rough estimate of what your body actually needs. No fluff. No “proprietary algorithm” nonsense. Just math that’s been around for decades. I built this because I got tired of seeing overcomplicated fitness apps with pop-ups and premium tiers just to tell someone they need 2,200 calories a day. This? It’s simple. Plug in your info, get your number, and move on with your life.

Key Features

• Fast and no-nonsense—no sign-up, no ads, no tracking.
• Uses the Mifflin-St Jeor equation—it’s not perfect, but it’s widely accepted and more accurate than most alternatives.
• Accounts for your activity level, from couch potato to weekend warrior.
• Gives you maintenance calories, plus suggestions for cutting or bulking.
• Works on your phone, tablet, or that ancient laptop you refuse to upgrade.
• Free. Always. Because why charge for basic math?

FAQ

Is this accurate?
Look, nothing’s 100% accurate. Your metabolism’s weird. Stress, sleep, hormones—they all mess with the numbers. But this gives you a solid starting point. Track your weight for a couple weeks, adjust if needed, and you’ll be close enough to make real progress.

Can I use this to lose weight?
Yeah, absolutely. Once you know your TDEE, eat 300–500 calories less per day and you’ll likely lose about a pound a week. Just don’t go too low—your body’s not a spreadsheet. And drink water. Seriously.