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auto

Fuel Consumption Calculator

Free privacy-first fuel consumption and trip cost calculator. Calculate your fuel economy in metric and imperial units for you.

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Power & Torque Converter: HP to kW, Nm to lb-ft

Instant automotive unit converter. Switch between Horsepower (hp), Kilowatts (kW), Metric HP (ps), and Torque units (Nm, lb-ft). Privacy-first, browser-only calculations.

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Car Total Cost of Ownership Calculator

Calculate the true cost of owning your vehicle. Includes fuel, insurance, maintenance, and hidden fees. 100% private and browser-based.

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Luxury SUV Ownership Cost in your country

Calculate the true cost of owning a luxury SUV in $. Uncover hidden expenses from premium fuel to air suspension repairs.

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Sedan Ownership Cost

Calculate the long-term TCO of a sedan. From fuel efficiency on major highways to insurance rates in major cities.

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Electric Car Ownership Cost

Analyze the true TCO of an EV in $. Compare higher upfront price against massive savings in fuel and maintenance.

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Used Car Ownership Cost

Calculate the true cost of a used car. Balance depreciation savings with repair budgets in $.

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health

BMR Calculator

Calculate your Basal Metabolic Rate (BMR) and estimated daily calorie needs instantly in your browser.

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pc

Power Supply Calculator

Calculate the perfect power supply (PSU) wattage for your custom PC build. Accurate estimations with overclocking support.

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img

Free Online Image Editor

Professional grade online image editor. Edit photos, apply filters, and use layers directly in your browser. 100% privacy, no server uploads.

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Polaroid Photo Generator

Easily turn any photo into a vintage Polaroid picture. Add custom handwriting captions, adjust zoom and rotation, and download for free with no watermarks.

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programming

Image to Code Converter

Convert images to Base64, calculate SHA-256 hashes, or generate BlurHash/pHash directly in your browser. Get ready-to-use CSS, HTML, JS, Python, Java, and PHP code.

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safety

Secure Password Generator

Generate strong, secure passwords with customizable options.

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math

Compound Interest Calculator

Calculate your investment growth over time with our compound interest calculator. Account for inflation, taxes, and regular contributions.

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Cookie Policy

Transparency is a core pillar of Zernar. This comprehensive Cookie Policy is designed to clearly explain what cookies are, precisely how our platform and third-party partners utilize them, and the actionable steps you can take to manage your digital footprint while browsing our site.

1. Understanding Cookies and Web Storage

Cookies are small text files placed on your computer, smartphone, or tablet by websites you visit. They are an industry-standard technology used globally to ensure websites function properly, remember your preferences, and provide analytical insights to site owners. In addition to traditional cookies, modern browsers utilize 'Local Storage'—a similar technology that allows websites to save data directly on your device. While traditional cookies are often sent back and forth between your browser and web servers, Local Storage data generally remains strictly on your device.

2. How Zernar Operates (Zero First-Party Tracking)

Zernar is uniquely engineered to minimize tracking. Our core utility tools (the calculators and converters) operate using a 100% client-side architecture. This means the mathematical operations execute in your browser's memory without requiring persistent first-party tracking cookies to function. We do not use cookies to track your personal calculator inputs, monitor your specific keystrokes, or build an internal profile of your behavior. Any data you enter into our tools is isolated and disappears when you refresh or close the tab.

3. Third-Party Cookies: Analytics and Advertising

To maintain Zernar as a free resource, we partner with specialized third-party services that do employ cookies. We use Google Analytics to gather anonymized, aggregated data (such as page views and geographic regions) to help us understand which tools are most useful to our community. Additionally, we use Google AdSense to serve advertisements. Google and its ad technology partners utilize cookies to display personalized ads based on your prior visits to Zernar or other sites across the internet. These third-party cookies allow advertising networks to recognize your device, but they do not gain access to the data you type into our calculators.

4. Your Rights: Managing and Disabling Cookies

You have total authority over how cookies operate on your device. Most modern web browsers allow you to block, delete, or selectively accept cookies via their privacy settings. If you prefer not to receive personalized advertisements, you can easily opt out by visiting Google's 'My Ad Center' (myadcenter.google.com) or by utilizing industry opt-out portals. Please note that while disabling third-party cookies will stop personalized tracking, you may still see non-personalized, contextual advertisements on Zernar.