Privacy Policy

Introduction

Welcome to NumbrWiz ("we," "our," or "us"). This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our website https://numbrwiz.com (the "Site"). We are committed to protecting your privacy and ensuring a safe online experience.

By using NumbrWiz, you agree to the collection and use of information in accordance with this policy. If you do not agree with any part of this policy, please discontinue use of our Site.

Information We Collect

NumbrWiz is designed with privacy-first principles. Most of our calculators run entirely in your browser (client-side), meaning your inputs and results never leave your device. We collect minimal information, which falls into these categories:

Automatically Collected Data: When you visit our Site, our servers automatically log standard information sent by your browser, including your IP address, browser type, operating system, referring URLs, pages visited, and timestamps. This is standard practice for virtually all websites.
Cookie Data: We and our advertising partners use cookies and similar technologies to enhance your experience, serve relevant ads, and analyze Site traffic. See the Cookies section below for details.
Voluntarily Submitted Information: If you contact us via email or our contact form, we collect the information you provide (such as your name and email address) solely to respond to your inquiry.
Calculator Inputs: All calculator inputs are processed locally in your browser. We do not store, transmit, or log the values you enter into any calculator tool.

                        Key Point: NumbrWiz calculators run client-side. Your calculation data — percentages, measurements, scores, or any other inputs — stays on your device. We never see it, store it, or share it.
                    

Cookies

Cookies are small text files placed on your device by websites you visit. They are widely used to make websites work efficiently and provide information to site owners. NumbrWiz uses cookies for the following purposes:

Essential Cookies: These are necessary for the Site to function properly. For example, we use a cookie to remember your dark mode preference (stored locally as numbrwiz-theme in your browser's localStorage).
Analytics Cookies: We use Google Analytics to understand how visitors interact with our Site. These cookies collect anonymous data about pages visited, time spent, and navigation patterns.
Advertising Cookies: Google AdSense and other advertising partners may place cookies on your device to serve personalized or non-personalized ads based on your browsing history and interests.
Preference Cookies: These remember settings you've chosen (such as your preferred theme) to improve your experience on return visits.

You can control cookies through your browser settings. Most browsers allow you to refuse or delete cookies. However, disabling cookies may affect the functionality of some parts of our Site. To learn more about managing cookies, visit www.allaboutcookies.org.

Analytics

We use Google Analytics, a web analytics service provided by Google LLC ("Google"), to collect and analyze information about how visitors use our Site. Google Analytics uses cookies to gather data such as:

Pages visited and time spent on each page
Referring websites and search queries
Browser type, device type, and screen resolution
Geographic location (country/city level only)
New vs. returning visitor status

This information is aggregated and anonymized. We use it to improve our calculators, understand which tools are most popular, and enhance the overall user experience. Google Analytics data is retained for 26 months by default.

You can opt out of Google Analytics by installing the Google Analytics Opt-out Browser Add-on.

Log Files

Like most websites, NumbrWiz maintains standard server log files. These logs automatically record information sent by your browser each time you request a page. Log data may include:

Internet Protocol (IP) address
Browser type and version
Internet Service Provider (ISP)
Date and time stamps
Referring and exit pages
Number of clicks and navigation patterns

This data is used solely for administrative purposes, including security monitoring, fraud prevention, troubleshooting technical issues, and analyzing broad traffic trends. Log files are not linked to any personally identifiable information and are regularly purged.

Advertising Partners

NumbrWiz displays advertisements to support our free calculator platform. Our advertising partners may use cookies, web beacons, and similar tracking technologies to serve ads that are relevant to your interests. Key advertising partners include:

Google AdSense: Our primary advertising partner. Google uses the DoubleClick cookie to serve ads based on your visits to our Site and other websites across the internet.
Third-Party Ad Networks: From time to time, we may work with additional ad networks. All partners are vetted for compliance with applicable privacy regulations.

These third-party ad servers automatically receive your IP address and may use cookies, JavaScript, or web beacons to measure ad effectiveness and personalize content. NumbrWiz does not control these third-party cookies. We encourage you to review the privacy policies of our advertising partners for more information.

You may opt out of personalized advertising by visiting www.aboutads.info/choices (US residents) or www.youronlinechoices.eu (EU residents).

Google, as a third-party vendor, uses cookies to serve ads on NumbrWiz. Google's use of the DART cookie enables it to serve ads to our visitors based on their visit to our Site and other sites on the internet. Visitors may decline the use of the DART cookie by visiting the Google Ad and Content Network privacy policy at policies.google.com/technologies/ads.

We have implemented the following Google AdSense features on NumbrWiz:

Personalized Ads: Ads tailored to your interests based on browsing history (where consent is provided).
Non-Personalized Ads: Contextual ads based on page content rather than user behavior (served where personalized ads are restricted or consent is not given).
Frequency Capping: Limits on how often specific ads are shown to individual users.
Ad Measurement: Anonymous reporting on ad performance and user engagement.

Your Choice: You can manage your Google ad preferences or opt out of personalized advertising entirely by visiting Google Ads Settings at adssettings.google.com. You may also use the Google Analytics opt-out browser add-on mentioned above.

Third-Party Services

In addition to Google services, NumbrWiz may integrate with or link to the following types of third-party services:

Font Delivery: We use Google Fonts to serve the Inter typeface. Google Fonts may collect anonymized usage data. See Google Fonts for details.
CDN Services: Static assets may be served via Content Delivery Networks that log anonymized request data for performance monitoring.
External Links: Our Site contains links to external websites, including reference sources, partner sites, and social platforms. We are not responsible for the privacy practices or content of these external sites. Please review their privacy policies independently.
Contact Form Processing: If you submit a contact form, your message may be processed through a secure email delivery service. We do not retain contact form submissions on our servers beyond the time needed to respond.

We carefully evaluate all third-party services for privacy compliance before integration. No third-party service receives your calculator input data.

Data Protection

We take the security of your data seriously and implement appropriate technical and organizational measures to protect the information we collect. These measures include:

HTTPS Encryption: All data transmitted between your browser and our servers is encrypted using TLS (Transport Layer Security).
Minimal Data Retention: We retain server logs for the shortest duration necessary for operational and security purposes. Logs are automatically purged on a rolling basis.
Access Controls: Access to server infrastructure and analytics data is restricted to authorized personnel only.
Client-Side Processing: Calculator computations occur entirely in your browser. No calculator input data is transmitted to or stored on our servers.
Regular Review: Our data protection practices are periodically reviewed and updated to align with evolving standards and regulations.

While we strive to protect your information, no method of transmission over the internet or electronic storage is 100% secure. We cannot guarantee absolute security but work continuously to maintain robust safeguards.

Children's Privacy

Protecting the privacy of young children is especially important. NumbrWiz is not directed at children under the age of 13, and we do not knowingly collect personal information from children under 13.

In compliance with the Children's Online Privacy Protection Act (COPPA) and similar regulations worldwide:

We do not request or collect personal information from anyone under 13.
All calculator tools are designed for general audiences and do not require age verification or personal data.
Our advertising partners are instructed not to serve behaviorally targeted ads to users identified as under 13.
If we become aware that a child under 13 has provided us with personal information, we will promptly delete such data from our records.

Parents or guardians who believe their child has provided personal information to NumbrWiz should contact us immediately using the details in the Contact Information section below.

Your Rights

Depending on your jurisdiction, you may have certain rights regarding your personal data. These may include:

Right to Access: You can request information about the personal data we hold about you.
Right to Rectification: You can request correction of inaccurate or incomplete data.
Right to Erasure ("Right to be Forgotten"): You can request deletion of your personal data under certain conditions.
Right to Restrict Processing: You can request limitations on how we process your data.
Right to Data Portability: You can request a copy of your data in a structured, machine-readable format.
Right to Object: You can object to processing of your data for direct marketing or legitimate interest purposes.
Right to Withdraw Consent: Where processing is based on consent, you can withdraw that consent at any time.

Since NumbrWiz collects minimal personal data (primarily through analytics and advertising cookies), many of these rights apply to data held by our third-party partners (Google, etc.) rather than NumbrWiz directly. To exercise your rights, please contact us. We will respond within the timeframe required by applicable law.

For GDPR (EU/EEA) or CCPA (California) specific requests, please specify your jurisdiction in your communication so we can process your request appropriately.

By using NumbrWiz, you consent to this Privacy Policy and agree to its terms. Specifically:

Cookie Consent: On your first visit, you will see a cookie consent banner allowing you to accept or manage cookie preferences. Essential cookies (such as your theme preference) do not require consent.
Advertising Consent: For users in regions covered by GDPR, ePrivacy Directive, CCPA, and similar regulations, we obtain consent before serving personalized advertisements. Non-personalized (contextual) ads may be served without behavioral tracking.
Withdrawal: You can withdraw consent at any time by clearing your browser cookies, adjusting your browser privacy settings, or using the opt-out links provided throughout this policy.

                        Note: All NumbrWiz calculator tools function fully without cookies. You can use every calculator even if you decline all non-essential cookies. Advertising supports our free platform but is not required for tool functionality.
                    

Policy Updates

We may update this Privacy Policy from time to time to reflect changes in our practices, legal requirements, or operational needs. When we make changes, we will:

Update the "Last Updated" date at the top of this page.
Post the revised policy prominently on our Site.
For material changes, provide a notice on our homepage or via other appropriate channels.

We encourage you to review this Privacy Policy periodically to stay informed about how we protect your information. Continued use of NumbrWiz after changes are posted constitutes acceptance of the updated policy.

This policy was last reviewed and updated on May 11, 2026 by the NumbrWiz Editorial Team.

Contact Information

If you have questions, concerns, or requests regarding this Privacy Policy or our data practices, we welcome you to reach out:

NumbrWiz Editorial Team

Website: https://numbrwiz.com

Contact Page: https://numbrwiz.com/contact

Email: support@numbrwiz.com

We aim to respond to all privacy-related inquiries within 5 business days.

For GDPR inquiries, you may also contact our designated EU representative. For CCPA requests, please use the subject line "CCPA Privacy Request" in your communication. We are committed to addressing your concerns promptly and transparently.

Our Commitment

NumbrWiz is built on trust. We created this platform to provide free, fast, and accurate online calculators without compromising your privacy. Our core commitments remain:

No selling of personal data — we do not sell, rent, or trade your personal information to third parties.
No unnecessary data collection — we only collect what is needed to operate and improve the Site.
Transparency — we clearly disclose our data practices and update this policy as they evolve.
User control — you have meaningful choices about cookies, ads, and data sharing.

Thank you for trusting NumbrWiz with your everyday calculations. We're honored to serve you.