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CDCALC

The calculator that goes where you go

Lightweight, fast, and 100% free. No sign-up, no ads, no internet required just download and start calculating.

What is a calorie deficit?

A calorie deficit means you eat fewer calories than your body burns. Your body then uses stored energy (fat) to fill the gap, which is why a controlled deficit is the foundation of sustainable fat loss. Getting the number rightnot too low, not a guesshelps you lose weight without losing energy or muscle.

Why you need a calorie deficit

To lose fat, you need to be in a deficit; to build or maintain, you need the right intake. Guessing leads to plateaus or burnout. A clear daily targetbased on your age, weight, height, activity, and goalgives you a number to hit so you can focus on food and training instead of second-guessing.

Why use an app to hit your deficit?

Manual formulas and spreadsheets are slow and easy to get wrong. CDCALC does the math for you: enter your stats, pick your activity and goal, and get your daily calories and macros in seconds. No account, no ads, no internetjust a simple tool that gives you a number you can trust so you can stay consistent and see results.

Get CDCALC free

About CDCALC

CDCALC is a calorie and macro calculator built for speed and privacy. You enter your age, weight, height, activity level, and goal (e.g. cut, recomp). The app computes your daily calorie target and a protein-first macro split so you know exactly what to aim for each day.

It runs fully offline, works on Windows and Linux (portable or installed), and keeps all data on your device. No sign-up, no tracking, no subscriptionsjust download once and use it whenever you need to recalculate or adjust your targets.

Built for the screen where you actually plan

CDCALC is built for Windows and Linuxby design. Your calorie target isn’t a notification; it’s a number you set once and then live by. That decision deserves a focused moment: full keyboard, clear layout, no thumb-tapping on a tiny screen. Most people who take macros seriously plan at a deskmeals, spreadsheets, shoppingso the calculator lives where the planning happens.

  • Focus, not friction. Enter your stats in one deliberate session. Get your number. Use it everywhereon paper, in your head, in any app. No need to open a phone app every time.
  • Your machine, your data. No app store, no cloud account, no “sign in to sync.” The binary and your inputs stay on the device you control. Portable builds mean you own it.
  • Tool, not habit. You don’t need a daily reminder to hit a calorie targetyou need a number you trust. Open CDCALC when you recalculate; the rest of the time, just use the number.

Main UI

Enter your details in one place: age, weight (kg or lbs), height, and use the dropdowns to choose your activity level and goal. When you’re ready, slide the button to calculate your daily calories and macrosno account or internet required.

CDCALC main user interface with inputs and slide to calculate
CDCALC activity level selection screen

Activity selection

Pick how active you are from sedentary (little or no exercise) to extremely active (very hard exercise or physical job). Each option is clearly described so you can choose the level that matches your routine. Use the back button to change your choice anytime.

Goal selection

Choose your nutrition goal: Aggressive Cut (25% calorie deficit), Moderate Cut (15% deficit), or Recomp (maintenance and building). Each option is explained so you can align the app with your fitness plan.

CDCALC goal selection screen
CDCALC results showing daily calories and macros

Result

Your daily calories and macro breakdown (protein, carbs, fats) are shown in one clear view. Use “Back to Home” to change your inputs and recalculate anytime. All calculations run on your device.

Why CDCALC?

Built for speed, privacy, and simplicitywherever you work.

  • Always ready, offline

    No Wi‑Fi? No problem. Your calculations stay privateno accounts, no telemetry, no data ever sent to the cloud.

  • Truly portable

    Run from a USB stick or folderzero install on Windows and AppImage. Perfect for locked-down PCs, travel, or shared machines.

  • One app, every platform

    Windows, Linux (AppImage, Debian, RPM)same trusted experience everywhere. Switch devices without learning a new tool.

Get started in three steps

From download to first calculation in under a minute.

  1. Download

    Pick your platform and grab the packageportable ZIP or installer. No account needed.

  2. Run

    Extract (if portable) or install, then launch. CDCALC starts fast and stays lightweight.

  3. Calculate

    Enter your numbers and get results. Everything runs locallyyour data never leaves your machine.

Ready for your machine?

Windows (portable), Linux AppImage, Debian, and RPMall in one place. Choose your build and download free.

Choose your download

Get CDCALC free

The calculator that goes where you go. Free foreverno sign-up, no ads.

Get CDCALC free