EcoCalc

EcoCalc Advanced is an interactive carbon analysis system that estimates a user’s daily and monthly CO₂ footprint using real-world emission factors and visual insights.

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Inspiration

In today’s world, most people are unaware of how their daily activities contribute to climate change. Simple actions like switching on a fan, traveling by bike, or eating meat all have a carbon cost — but we rarely measure it.
We wanted to create a lightweight, educational, and awareness-driven tool that helps people understand their carbon footprint and encourages eco-friendly habits.
That idea became EcoCalc — a small C program with a big environmental message 🌍.

What it does

EcoCalc estimates a user’s daily carbon footprint (in kilograms of CO₂) by analyzing:

  • Household electricity usage (kWh)
  • Travel distance (private and public)
  • Type of diet (vegetarian, mixed, or non-vegetarian)

After calculation, it provides personalized eco-tips like:

“Switch to LED bulbs,”
“Try carpooling,” or
“Include more plant-based meals.”

The goal is to make sustainability measurable and accessible for everyone — even through a simple console program.

How we built it

  • Language: C
  • Libraries Used: stdio.h, math.h
  • Tools: GCC compiler, VS Code, GitHub for version control
  • We designed a console-based interface to collect user input and apply simple emission estimation formulas:
    • Electricity: kWh × 0.85 kg CO₂
    • Fuel (private transport): km × 0.12 kg CO₂
    • Public transport: km × 0.05 kg CO₂
    • Diet factor: 2–4 kg CO₂ depending on type

The final output gives the total daily CO₂ footprint and actionable recommendations.

Challenges we ran into

  • Designing accurate yet easy-to-understand formulas for emission estimation.
  • Keeping the project simple, functional, and beginner-friendly while still addressing real-world problems.
  • Managing time constraints — completing and testing the project within the hackathon’s short window.
  • Ensuring the code runs smoothly across multiple platforms (Linux, Windows).

Accomplishments that we're proud of

  • Building a fully functional green tech project in C within a limited timeframe.
  • Keeping the project educational, data-driven, and environment-focused.
  • Writing clean, readable code that even beginners can learn from.
  • Raising awareness about sustainable choices through technology.

What we learned

  • Applying C programming for solving real-world sustainability problems.
  • Using GitHub and Devpost for open-source project submission.
  • Understanding how small design choices can have a big environmental message.
  • Collaborating and staying disciplined during hackathon deadlines.

What's next for EcoCalc

  • Expand EcoCalc into a web-based or mobile application with real-time emission tracking.
  • Add data visualization (charts, graphs) to display long-term user statistics.
  • Integrate with IoT sensors to automatically read electricity or travel data.
  • Include renewable energy comparisons (e.g., showing how much CO₂ you save by using solar).
  • Localize for multiple languages and share open-source for environmental education.

About the Project

EcoCalc is a sustainability-focused hackathon project developed for Build-a-thon 2025 under the Green Technology track.
It demonstrates how even a simple C program can inspire awareness about climate change and motivate action toward a greener future. 🌱

⭐ “Measure your impact. Change your habits.”

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