# Chippy Tools - Carpentry & Construction Calculator Apps The go to carpentry and construction calculator for carpenters and home handymen looking to take the hassle out of maths on the job site. - Canonical HTML: https://www.chippy.tools/ - Publisher: Chippy Tools - Language: en - Updated: 2026-09-06 The Carpenter's Calculator Professional construction calculators that work offline. Stairs, concrete, roof pitch, baluster spacing and more — all in one app. [App Store](https://apps.apple.com/app/apple-store/id1579138717?pt=1325369&ct=chippy.tools&mt=8) [Google Play](https://play.google.com/store/apps/details?id=tools.chippy&referrer=utm_source%3Dchippy.tools%26utm_medium%3Dwebsite) ## Every Calculator. One App. From stairs to concrete, roof pitch to baluster spacing — every calculation a builder needs, right in your pocket. [![Stair Calculator screenshot](https://www.chippy.tools/screenshots/stairs-calculator_hu_2609f2d1b4683148.webp) \ Stair Calculator](https://www.chippy.tools/features/stair-calculator/) [![Concrete Slab screenshot](https://www.chippy.tools/screenshots/concrete-slab-calculator_hu_1b28b43ad70bcd28.webp) \ Concrete Slab](https://www.chippy.tools/features/concrete-calculator/) [![Baluster Spacing screenshot](https://www.chippy.tools/screenshots/baluster-calculator_hu_e313342aa4954fbe.webp) \ Baluster Spacing](https://www.chippy.tools/features/baluster-spacing-calculator/) [![Right Triangles screenshot](https://www.chippy.tools/screenshots/triangles-calculator_hu_da5c609ec16e1c39.webp) \ Right Triangles](https://www.chippy.tools/features/triangle-calculator/) [![Check Square screenshot](https://www.chippy.tools/screenshots/check-square-calculator_hu_9792056ca0f200c9.webp) \ Check Square](https://www.chippy.tools/features/check-square-calculator/) [![Equal Spacing screenshot](https://www.chippy.tools/screenshots/equal-spacing-calculator_hu_ae26dd11cae89.webp) \ Equal Spacing](https://www.chippy.tools/features/equal-spacing-calculator/) [![Rake Walls screenshot](https://www.chippy.tools/screenshots/rake-walls-pitch-calculator_hu_a6037f8a589c916e.webp) \ Rake Walls](https://www.chippy.tools/features/raked-wall-calculator/) [![Dumpy Levels screenshot](https://www.chippy.tools/screenshots/dumpy-level-calculator-metric_hu_ae3326c49278c7ce.webp) \ Dumpy Levels](https://www.chippy.tools/features/dumpy-level-calculator/) Testimonials ## Trusted on Job Sites Worldwide > "I've used this app for setting out triangulation for foundations, internal wall, roofs garden walls, you name it. The spacing tool is great too. I'd be lost without this app." N nu/da United Kingdom · App Store ### "Very good" > As a carpenter myself, I would find it impossible to do my job without Chippy Tools. How did Jesus manage it? 9 997ryan Australia ### "Excellent app! Dumpy level user's friend." > I'm an archaeologist and was looking for something to calculate elevations while using a dumpy level on site. This is an excellent app and speeds up calculating so I can get on to other work faster. I've only bought the one year, but will definitely pay for a lifetime subscription when it ends. $35 is pricey for an app, but it works and that's worth it over years of excavation. A Amcalm4 United States ### "Great app." > Not a lot of money to pay for something so useful and user friendly. I use it all the time. T toakers United Kingdom ### "Everything you need for your next DIY" > Started using the app recently for an at home diy and couldn't have better things to say! Made figuring out all the quantities I needed quick, easy and accurate! Definitely a must have for any project home or otherwise! S Sass13466 Australia ### "Accurate and very easy to use" > As a home builder I use chippy tools regularly. Very user friendly and saves me time and materials. J Jeffmuir Australia ### "Great app." > Great app!! Highly recommend. Developers keeping up to date, adding new features!! would love for them to keep coming. Very handy for all your calculation needs. H Haydgger Australia ## See It In Action Watch how Chippy Tools simplifies complex calculations into a few taps. ## Built for the Job Site ### Works Offline No internet connection required. Calculate measurements anywhere on the job site, even in areas with no signal. ### Metric & Imperial Switch seamlessly between metric and imperial measurements with a single tap. Supports millimetres, feet, inches and fractions. ### Reduce Costly Errors Order the exact materials you need. Avoid expensive over-ordering or project delays from under-ordering. ## Ready to Build Smarter? Join 350,000+ builders, carpenters and DIY enthusiasts who trust Chippy Tools on the job site. [![Download from the App Store](https://www.chippy.tools/images/download-badges/app-store/en.svg)](https://apps.apple.com/app/apple-store/id1579138717?pt=1325369&ct=chippy.tools&mt=8) [![Download on Google Play](https://www.chippy.tools/images/download-badges/google-play/en.png)](https://play.google.com/store/apps/details?id=tools.chippy&referrer=utm_source%3Dchippy.tools%26utm_medium%3Dwebsite) ## Latest How-To & DIY Guides Practical, step-by-step tips for every builder and DIY enthusiast. ![](https://www.chippy.tools/cdn-cgi/image/width=800/https://static.chippy.tools/articles/concrete-shed-base.jpeg) Jan 06, 2026 ### [How Much Concrete Do I Need for a Shed Base? Full Guide](https://www.chippy.tools/articles/how-much-concrete-do-i-need-for-a-shed-base/) ![](https://www.chippy.tools/cdn-cgi/image/width=800/https://static.chippy.tools/articles/roof-pitch-degrees-calculation.jpeg) Jan 05, 2026 ### [How to Work Out Pitch of Roof in Degrees: Calculation Guide](https://www.chippy.tools/articles/how-to-work-out-pitch-of-roof-in-degrees/) ![](https://www.chippy.tools/cdn-cgi/image/width=800/https://static.chippy.tools/articles/cubic-yard-materials.jpeg) Dec 17, 2025 ### [How Much Does a Cubic Yard Weigh? Weight Guide by Material](https://www.chippy.tools/articles/how-much-does-a-cubic-yard-weigh/) ## Frequently Asked Questions Need help? [Contact us](https://www.chippy.tools/contact/) Who is Chippy Tools for? The app is ideal for Architects, Builders, Carpenters, [Construction Workers](https://www.chippy.tools/use-cases/construction-calculator/), Contractors, Designers, DIY Enthusiasts, Engineers, Tradesmen and Woodworkers — anyone looking to make common construction calculations with speed, ease and accuracy. What features do I get for free? The free version includes the Baluster spacing calculator, support for millimetres, feet and inches, and our user-friendly interface. Is the app available for both iOS and Android? Yes, Chippy Tools is available for both iOS and Android devices. You can download it from the [App Store](https://apps.apple.com/app/apple-store/id1579138717?pt=1325369&ct=chippy.tools&mt=8) or [Google Play Store](https://play.google.com/store/apps/details?id=tools.chippy&referrer=utm_source%3Dchippy.tools%26utm_medium%3Dwebsite). Does the app work with both Metric and Imperial measurements? Yes. You can seamlessly switch between metric (e.g., millimetres) and imperial (e.g., feet, inches, and fractions of an inch) units to suit your project's requirements. Is Chippy Tools Pro a subscription or a one-time purchase? You can subscribe directly through our [website](https://www.chippy.tools/pricing/) or through the App Store or Google Play. Available plans and prices can differ by purchase channel and region. Check the website for direct plans and the app for current store options. If I buy a new phone, do I need to purchase the app again? For an App Store or Google Play purchase, use the same store account and restore your purchase in the app. For a direct subscription, sign in with the Chippy Tools account you used to subscribe. If you are changing platforms, [contact us](https://www.chippy.tools/contact/) to check your options. How accurate are the calculations? Our calculations are built on standard, industry-accepted mathematical formulas, tested extensively for on-site accuracy. Always double-check critical measurements and adhere to local building codes as a best practice. ## Page directory - [Building Codes Around the World](https://www.chippy.tools/building-codes/index.md): Find building-code guidance for your location, calculation guides for your task and printable references for site. - [Chippy Tools Alternatives: Honest Carpentry Calculator Comparisons](https://www.chippy.tools/alternatives/index.md): Side-by-side comparisons of Chippy Tools and other carpentry and construction calculator apps, covering offline use, pricing, accounts and calculator coverage. - [Chippy Tools Pro Pricing — Subscribe Direct & Save](https://www.chippy.tools/pricing/index.md): Subscribe to Chippy Tools Pro directly and unlock every construction calculator in the app. Choose weekly, monthly, or yearly plans with transparent pricing. - [Construction Calculator App: Every Calculator in Chippy Tools](https://www.chippy.tools/features/index.md): A construction calculator app for concrete, gravel, stairs, decking, roof pitch and set-out. Metric or imperial, and it works offline on iOS and Android. - [Construction Calculator Use Cases for Builders and Handymen](https://www.chippy.tools/use-cases/index.md): See how tradies and DIYers use Chippy Tools on real jobs — concrete pours, deck spacing, stair set-out and roof angles, in metric or imperial, offline. - [Construction Tips and Tools: Expert Articles](https://www.chippy.tools/articles/index.md): Explore construction articles on tips, tools, and techniques. Expert advice for builders, chippies, and DIYers tackling building and renovation work. - [Contact Chippy Tools Support Team](https://www.chippy.tools/contact/index.md): Need help using Chippy Tools? Contact our team for assistance, feature requests, or bug reports. Explore our FAQs for answers to common queries. - [Download Chippy Tools](https://www.chippy.tools/download/index.md): Download our app for iOS and Android to simplify your projects. Access powerful tools and calculators right from your phone—ready whenever you are! - [Free 7-Day Trial | Chippy Tools Carpentry Calculator](https://www.chippy.tools/free-trial/index.md): Try Chippy Tools free for 7 days — every carpentry and construction calculator in your pocket. No credit card and no automatic charge. Start your trial in seconds. ## Other languages - [es](https://www.chippy.tools/es/index.md) - [de](https://www.chippy.tools/de/index.md) - [fr](https://www.chippy.tools/fr/index.md) - [hi](https://www.chippy.tools/hi/index.md) - [hr](https://www.chippy.tools/hr/index.md) - [id](https://www.chippy.tools/id/index.md) - [ja](https://www.chippy.tools/ja/index.md) - [ko](https://www.chippy.tools/ko/index.md) - [nb](https://www.chippy.tools/nb/index.md) - [pl](https://www.chippy.tools/pl/index.md) - [pt](https://www.chippy.tools/pt/index.md) - [ru](https://www.chippy.tools/ru/index.md) - [sv](https://www.chippy.tools/sv/index.md) - [ur](https://www.chippy.tools/ur/index.md) - [zh](https://www.chippy.tools/zh/index.md) - [vi](https://www.chippy.tools/vi/index.md)