For everyone who loves their garden and home. 🏡

Smart tools for home & garden

— simple, fast, free.

Discover tools
Everything for your project 🛠️
Our Online Tools for Home and Garden
Many everyday questions around the home and garden can be solved with the right tool – from electricity usage to lawn seed or heating power. This site brings them all together in one place – free to use, no login required.

Electricity Usage Calculator

House
Calculate your devices' electricity consumption and costs - quick, easy and fully customizable.

Mortgage Calculator

House
Calculate your estimated monthly mortgage payment - including interest, loan term, and optional taxes or insurance.

Paint Calculator

House
Calculate how much paint you need for your next painting project - including doors/windows and suggested bucket sizes.

Radiator Calculator

House
Calculate the recommended heating power for any room - based on size, usage, and insulation quality.

Rainwater Harvest Calculator

Garden
Estimate how much rainwater you can collect from your roof - simple, free and sustainable.

Seed Calculator

Garden
Never sow too much or too little again - with our handy seed calculator.

Solar Power Calculator

House
Estimate how much electricity you could generate with a solar panel system - based on area, roof orientation, and your location.

Suggest a Tool

Didn't find what you were looking for? Suggest your own idea and help us improve!

How do the tools work?

All tools are interactive, intuitive, and work directly in your browser. You enter your data – we calculate live and show the result instantly. No registration, no downloads, no delays.

Practical knowledge for your projects
Our Guides for Home & Garden
Wondering how much paint you need, what radiator size fits your room or if a solar panel setup pays off? Our short guides explain it all – clear, practical, and connected to useful tools you can try right away.

How much paint do you need to paint a room?

How many liters of paint do you really need for walls, ceilings or entire rooms? This guide shows you how to calculate surface area, coats and paint coverage – clearly and simply.

How much seed do I need for my area?

Whether it’s a lawn, flower meadow or vegetable patch – this guide shows you how to calculate the right amount of seed. Includes tips on soil quality, shade and buffer.

What radiator size do I need?

Too small means too cold. Too large means wasted energy. This guide helps you calculate the right radiator size for your room – clearly and easily.
Explore our guides

FAQ

What does using the tools cost?

All tools on this website are completely free and can be used without registration. The site is funded through ads (e.g. Google AdSense).

How accurate are the calculations?

The calculations are based on widely accepted formulas and average values. They are intended for planning and orientation, but do not replace professional advice.

Who is behind this site?

This platform is run by an independent developer creating practical tools for home, garden, and DIY fans - with the goal of making planning easier and smarter.

Are my data stored?

No. The tools run entirely client-side in your browser - no personal data is stored or sent to a server. Only third-party cookies (e.g. Google Ads) are used.

Why do I see ads on the site?

To keep the platform free to use in the long term, we display ads. These are automatically selected to match the content.

Is there an app or mobile version?

The site is mobile-optimized and works on smartphones, tablets, and desktops. A native app is not planned at this time.

How can I suggest a new tool?

Feedback and ideas are always welcome! Feel free to send in your suggestions via email.

About us

This platform is run by an independent developer with the goal of offering practical, ad-supported tools for home, garden and DIY – simple, helpful, and freely accessible for everyone who likes to plan and build themselves.

Privacy

We take privacy seriously. You can use all tools without providing any personal data. No accounts, cookies or tracking are used unless technically required or legally necessary (e.g. AdSense).