Terms of Service
Effective October 31, 2026
These terms cover the relationship between you and PrimerCalculator.com. We've kept them as close to plain English as legal text allows: what the site gives you, what you may do with it, where the boundaries sit, and what happens if something breaks.
Price
Free
Accounts
None
Your data
Stays on your device
Estimates are
Planning aids
What these terms cover
| Service | What it is | Status |
|---|---|---|
| Primer calculator | Room-dimensions and direct-area modes, surface-specific coverage rates, objective-based coat recommendations, waste factor, purchase plan in whole cans, and a cost estimator. | Live |
| Guide library | Six categories of written priming guides — surface prep, coverage, measuring, buying, color change and sealing, tools and technique. | Live |
| Share links & saved results | URL-encoded results and local-storage saves; both live entirely on your side of the network. | Live |
| Companion estimators (paint, wallpaper, cost comparison, spray) | Planned extensions of the same engine; nothing ships until its math is verified against product data sheets. | Planned |
1.Acceptance
By using the Site you agree to these terms. If you do not agree, please do not use the Site — there is no account to cancel and nothing to delete on our side, so leaving is as simple as closing the tab.
2.What the Site provides
The Site offers free planning tools for painting projects: the primer calculator and its companion features, plus a library of priming guides and reference sections. The table above lists what is live and what is planned. All tools are provided "as is" without warranties of any kind, express or implied, including fitness for a particular purpose or accuracy of results. A primer estimate is a planning figure, and the disclaimer is part of these terms by reference.
3.Not professional painting advice
Estimates produced by the calculator are planning references, not professional painting, specification, or contractor advice. The product you actually buy governs the job: its technical data sheet states the coverage, preparation, and application requirements that override any generic planning number. For surface-specific questions — substrate problems, adhesion failures, specialty coatings — consult the paint manufacturer or a qualified painting professional. You assume full responsibility for any decision made using the Site's output, including what you purchase and how you prep.
4.Key definitions
| the Site | PrimerCalculator.com, including the primer calculator, all guide pages, and hub pages. |
| Estimate | any primer volume, coat recommendation, can-and-pail purchase plan, spare-volume figure, or cost total produced by the calculator. |
| Your data | calculator inputs and saved results, which remain on your device and are never transmitted to us. |
5.Acceptable use
You may
- Use the calculator for any personal estimating purpose — planning purchases, budgeting a repaint, or preparing a shopping list.
- Link to any page of the Site freely, in any context.
- Share calculator result links — share links contain only the inputs you chose to include.
- Print or save a copy of a result or guide for your own records or a project file.
You may not
- Attempt to disrupt, overload, or reverse-engineer the Site or its infrastructure.
- Scrape, bulk-copy, or republish substantial portions of the coverage-rate tables, formulas, or guide content without written permission.
- Present the Site's estimates as professional painting, specifying, or contractor advice, or rebrand them as your own tool.
- Use automated systems to generate traffic or submissions that degrade the Site for other visitors.
6.Your content and your data
The Site stores nothing about you on our servers. Calculator inputs and saved results live in your browser only, and share links travel wherever you send them. Messages you send via the contact page are handled per the privacy policy. You retain all rights to anything you write to us; we retain the right to quote it (anonymized) when it corrects our reference data — coverage-rate fixes have literally come this way.
7.Intellectual property
The Site's design, text, and code are owned by PrimerCalculator.com or its licensors. The coverage rates used by the calculator summarize publicly available industry-standard planning numbers and are offered for personal, non-commercial planning use. If you believe content here infringes your rights, write to us with specifics and we'll address it promptly.
8.Limitation of liability
To the maximum extent permitted by law, PrimerCalculator.com and its operators are not liable for any indirect, incidental, or consequential damages arising from use of the Site, including purchases, material waste, or project delays made in reliance on calculator output. This clause is deliberately blunt: the tool is free, and its price in liability matches.
9.Changes & governing law
We may revise these terms at any time; continued use after changes constitutes acceptance, and the effective date above moves with any material revision. These terms are governed by the laws applicable at the operator's principal place of business, without regard to conflict-of-law rules. Questions about any clause are welcome at the contact page.
Last revised October 31, 2026 · See also the privacy policy and disclaimer.