Online Concrete Calculators is a free resource of concrete and cement calculators and plain-English guides, created and run by Robert Ferguson in Houston, Texas, USA. Our goal is simple: help homeowners, DIYers, students and tradespeople estimate their concrete needs accurately and understand the work before they start.
Who We Are
Online Concrete Calculators (onlineconcretecalculators.com) is an independent website owned and operated by Robert Ferguson. We are not affiliated with any concrete producer, manufacturer or contractor, and we do not sell concrete or construction services. Our content exists to inform, not to push a product.
Why This Website Exists
Ordering too little concrete means a stopped pour and a cold joint; ordering too much wastes money. Many people struggle to turn slab, footing, column, stair or wall dimensions into cubic yards, cubic meters or bag counts. We built these tools and guides to make that step fast, clear and easy to double-check.
What You Will Find Here
- Concrete calculators: tools for estimating concrete volume and materials for common shapes and projects, such as slabs, footings, columns, walls and stairs, with results in the units you choose.
- Cement and materials guides: explanations of cement, concrete mixes, aggregates, curing, reinforcement and related basics.
- How-to articles: step-by-step guidance written in plain language, with practical tips for planning, ordering and avoiding common mistakes.
How Our Calculators Work
Our calculators use standard geometric volume formulas and commonly used conventions for converting volume into units such as cubic yards, cubic meters and bags. Where a result depends on an assumption, such as a waste allowance, we aim to state it on the calculator page so you can adjust it for your project.
Please remember that results are estimates. Site conditions, formwork, subgrade, mix design and measurement errors all affect real quantities. Always verify your numbers and confirm final quantities with your supplier or contractor. See our Disclaimer for details.
Our Editorial Standards
We want you to be able to trust what you read here, so we follow these principles:
- Accuracy first: we check our formulas, examples and figures, and we prefer recognized industry sources and standards when explaining technical points.
- Original, helpful content: articles are written to answer real questions people have, not to repeat other pages.
- Clear about limits: we say when something depends on local codes, soil, climate or engineering design, and we point you to a qualified professional for structural decisions.
- Kept up to date: we revise articles and calculators as standards, practices or our own understanding change, and we update the “Last Updated” date when we do.
- Honest about money: we label affiliate links and sponsored content, and our recommendations are not influenced by commissions.
About the Author
Robert Ferguson is the founder, author and editor of Online Concrete Calculators, based in Houston, Texas. Robert created this website to give people a fast, clear and trustworthy way to estimate concrete quantities and to understand the basics of concrete and cement work before they order materials or start a project. He is responsible for the website’s calculators and articles, researches each topic using recognized industry sources and building standards, and reviews reader feedback so that mistakes are corrected quickly. Robert is based in Houston, Texas, where concrete is part of everyday residential and commercial construction, and he writes for readers who want practical, honest guidance rather than sales pitches.
You can contact Robert directly at support@onlineconcretecalculators.com.
Transparency: Ads and Affiliate Links
This website is free to use and is supported by advertising, including Google AdSense, and by occasional affiliate links. Ads and affiliate relationships never change how our calculators work or what our articles say. For details, see our Privacy Policy and Disclaimer.
Corrections and Feedback
Found a mistake or have a suggestion for a new calculator? We take accuracy seriously and want to hear from you. Email us and we will review and correct errors as quickly as we can.
Contact
- Email: support@onlineconcretecalculators.com
- Website: https://onlineconcretecalculators.com
- Location: Houston, TX, USA
Thank you for using Online Concrete Calculators.