Privacy Policy
Short version: we do not collect what you type, we do not have accounts, and the only cookies on this site come from the advertising network. The details are below.
Effective date: September 16, 2026. This policy applies to www.wattsineed.com ("Watts I Need", "we", "us").
1. What we collect directly
Nothing you type into the tool. All calculations run in your browser. Your inputs are never sent to our servers or to anyone else.
No accounts. There is no sign-up, login, newsletter or comment system.
Local storage. If you switch to dark mode, your browser stores a single preference ("wp-theme") in localStorage so the choice persists. It contains no personal data and never leaves your device.
Email. If you contact us, we receive your email address and whatever you write. We use it only to reply and keep it only as long as needed to resolve your message.
Server logs. Our hosting provider (Vercel) records standard web server logs, including IP address, browser type, the page requested and the time, for security and reliability. These are retained for a short period and are not used to identify or profile visitors.
2. Cookies and advertising
Watts I Need is supported by display advertising served by Google AdSense. This is the only part of the site that uses cookies, and we want to be specific about it.
- Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites.
- Google's use of advertising cookies (including the DoubleClick cookie) enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the Internet.
- These cookies and similar technologies (such as web beacons and device identifiers) may collect information such as your IP address, approximate location, browser and device type, the pages you view and how you interact with ads.
- Google and its partners may use this information for ad personalization, frequency capping, fraud prevention and measurement of ad performance.
How to opt out. You may opt out of personalized advertising by visiting Google Ads Settings. You can opt out of some third-party vendors' use of cookies for personalized advertising at aboutads.info (US), youradchoices.ca (Canada) or youronlinechoices.eu (EU/UK). You can also block or delete cookies in your browser settings; the tool works fully with cookies disabled.
For more on how Google uses data from sites that use its services, see How Google uses information from sites or apps that use our services.
3. Consent in the EEA, UK and Switzerland
If you visit from the European Economic Area, the United Kingdom or Switzerland, you will see a consent message before any advertising cookies are set. The message is provided through Google's certified consent management platform and lets you accept, reject or customize the purposes for which data is used. You can change your choice at any time via the "Privacy settings" link at the bottom of the page. Non-personalized ads may still be shown; these do not use cookies for personalization but may use contextual information such as the page content and approximate location derived from your IP address.
4. California and other US state privacy rights
We do not sell personal information in the ordinary sense, but advertising cookies may constitute "sharing" for cross-context behavioral advertising under the California Consumer Privacy Act (CCPA/CPRA) and similar laws in other states. You can opt out of such sharing using the links in section 2, by enabling the Global Privacy Control signal in your browser, or by emailing us. We do not knowingly collect personal information beyond what is described in this policy.
5. Analytics
We do not currently run a separate analytics service. If we add one in future (for example, privacy-focused aggregate page-view counting), we will update this policy before it goes live and describe what it collects.
6. Children
Watts I Need is not directed at children under 13 (or 16 in the EEA) and we do not knowingly collect personal information from them.
7. Links to other sites
Guides link to external sources. Those sites have their own privacy policies, and we are not responsible for their practices.
8. Security
The site is served over HTTPS. Because we do not store tool inputs or maintain accounts, there is no personal data on our side to breach beyond email correspondence.
9. Changes to this policy
We will post any changes on this page and update the effective date. Material changes will be noted with a short summary at the top of this page for at least 30 days.
10. Contact
Questions about this policy or your data: hello@wattsineed.com, subject line "Privacy". See also our terms of service.