CompoCalc

Badbert

About this app

🌱 CompoCalc — Smarter Compost Starts Here

Turn kitchen scraps and yard waste into rich, thriving compost with precision, confidence, and zero guesswork. CompoCalc is the ultimate C:N ratio companion for gardeners, homesteaders, and anyone who wants to transform waste into black gold.

Whether you’re a weekend gardener or a committed composter, CompoCalc helps you build faster, healthier, hotter, cleaner compost — every single time.

🔥 The Secret to Perfect Compost? The C:N Ratio.

Getting compost “just right” isn’t magic — it’s chemistry.
CompoCalc takes the science and makes it simple:

No spreadsheets

No guesswork

No smelly piles

No messy trial and error

Just choose your materials, adjust amounts, and watch CompoCalc instantly calculate your precise Carbon:Nitrogen ratio.

🌾 Build the Perfect Mix

CompoCalc gives you a powerful, intuitive workspace to design your compost batches:

🟤 Browns & Greens Presets (leaves, straw, coffee, manure, cardboard & more)

🧪 Real-time C:N ratio updates as you add or remove materials

✏️ Custom materials with adjustable ratios

⚖️ Accurate carbon and nitrogen breakdowns

🗂️ Save your favorite mixes for future piles

Whether you’re building a hot compost pile, slow bin, or worm bin, CompoCalc has you covered.

📘 Your Composting Guide, Built Right In

New to composting?
CompoCalc includes an easy-to-read, beautifully designed reference guide:

What counts as browns vs. greens

Why the C:N ratio matters

Common symptoms of unbalanced piles

Fixes for smelly, wet, dry, or slow compost

Tips for getting your pile hot fast

Everything you need — right where you need it.

📱 Designed for Real Gardeners

CompoCalc isn’t just functional. It’s crafted.

Clean, modern interface

Smooth custom dropdowns

Light & dark modes

Works offline — even in the garden

Zero ads

Zero tracking

Zero data collection

Just pure composting power.

🖨️ Print Your Mix. Share It. Save It.

With one tap, generate a beautiful, printer-ready Compost Summary — perfect for:

Garden journals

Homestead logs

Teaching composting

Tracking experiments

Comparing pile performance

CompoCalc keeps your composting organized and professional.

🌍 Made for Every Composter

Whether you’re composting in:
🏡 a backyard bin
🌾 a homestead pile
🐛 a vermicomposting setup
🌿 a community garden
🌱 or a small urban balcony

CompoCalc helps you make the most nutrient-rich, biologically active compost possible.

⭐ Take Your Compost to the Next Level

Healthy soil starts with healthy compost — and healthy compost starts with the right ratio.

Stop guessing. Start composting smarter.
Download CompoCalc today and transform your waste into life.