Frequently Asked Questions

Yes, 100% free! All our calculators and tools are completely free to use. There are no paywalls, no subscriptions, and no hidden costs. You don't even need to create an account or sign up — just visit any tool page and start calculating immediately.

We fund our website through non-intrusive advertisements (Google AdSense). This allows us to keep tools free for everyone while covering hosting and maintenance costs.

No! You don't need to create an account, sign up, log in, or download any software to use our calculators. All tools work directly in your browser — just visit the page and start using them.

Some tools (like the Spell Slot Tracker and Character Sheet) save your data locally in your browser for convenience, but this information never leaves your device.

Absolutely! We love hearing ideas from our users. Many of our most popular tools were created based on user requests. To suggest a new calculator:

• Visit our Contact Us page
• Select "Suggestion for a New Calculator" from the subject dropdown
• Describe what the calculator should do and any reference examples

We review all suggestions and prioritize those with the most community interest.

We aim to add new tools regularly based on user demand and our development pipeline. Updates happen on two fronts:

• New Tools: We typically release 2-4 new calculators per month
• Existing Tools: Bug fixes and data updates are applied as soon as issues are identified
• Game Updates: When games like D&D, Palworld, or Pokémon GO update their mechanics, we update our tools accordingly

We take accuracy seriously. Our calculators are built using:

• Official game rules and formulas (e.g., D&D SRD 5.1, Pokémon GO Game Master file)
• Community-verified data (e.g., Blooket rarity odds, Palworld breeding ranks)
• Published mathematical formulas (e.g., eDPI, numerology, half-birthday)

However, accuracy depends on the tool type:

• Rule-based calculators (D&D HP, Vorici, eDPI) are highly accurate — they implement official formulas directly
• Community-data calculators (Grow a Garden pet values, Blooket odds) reflect community estimates and may vary from actual game behavior
• Educational calculators (WASPI, Name Numerology) are for reference only and should not be treated as guaranteed outcomes

If you find an error, please report it and we'll fix it promptly.

No. Our tools are fan-made community resources. We are not affiliated with, endorsed by, or sponsored by any of the companies or games referenced, including but not limited to:

• Wizards of the Coast / Hasbro (Dungeons & Dragons)
• Niantic / The Pokémon Company (Pokémon GO)
• Pocketpair (Palworld)
• Grinding Gear Games (Path of Exile)
• Blooket LLC (Blooket)
• Roblox Corporation, Valve, Riot Games, Epic Games, Activision

All trademarks belong to their respective owners. Our D&D tools use SRD 5.1 content under the Open Gaming License.

Some tools auto-save, others don't. Here's a breakdown:

• Auto-save tools: Spell Slot Tracker, Character Sheets, and a few others save your data to your browser's local storage. Reopening the page on the same device/browser restores your data.
• Session-only tools: Most calculators (HP Calculator, eDPI, Treasure Generator) reset when you refresh the page.

⚠️ Important: Clearing your browser cache/cookies will erase saved data. For important character sheets, use the "Print" button to save a physical or PDF copy.

Absolutely! All our calculators are fully responsive and work on:

• 📱 Smartphones (iPhone, Android)
• 📱 Tablets (iPad, Android tablets)
• 💻 Laptops and desktop computers

We design every tool mobile-first, meaning the layout automatically adjusts to your screen size. No app download needed — just open your browser and go!

Yes! Depending on the tool:

• Print: The Character Sheet tool has a dedicated "Print" button that formats the sheet for printing
• Copy: Tools like the eDPI Calculator let you click results to copy them to your clipboard
• Screenshot: You can screenshot any tool results for sharing or saving
• Manual: For most tools, you can copy-paste results into a document or note app

Tools that save data (like Character Sheets) store one set of data at a time per browser. To manage multiple characters:

• Use different browsers (Chrome for Character A, Firefox for Character B)
• Use incognito/private mode for a second profile
• Print or screenshot each character before clearing and starting a new one
• Use different devices (phone vs. laptop)

Try these troubleshooting steps:

1. Refresh the page — a simple refresh often resolves temporary issues
2. Check your inputs — ensure all required fields are filled and values are within valid ranges
3. Try a different browser — Chrome, Firefox, Safari, or Edge
4. Clear browser cache — old cached files can sometimes cause conflicts
5. Disable browser extensions — some privacy/ad-blocking extensions may interfere

If the issue persists, report it to us with details about which tool, what happened, and your browser/device.

We use Google AdSense to display ads, which helps us keep all tools free. We strive to place ads in non-intrusive locations. If you're experiencing issues:

• Ads should not block tool functionality — if they do, please report it with a screenshot
• We do not use pop-up ads, malicious redirects, or auto-playing video ads
• If you use an ad blocker, we kindly ask that you whitelist our site to support our work — but the choice is yours

We collect minimal data. Here's what you should know:

• Calculator inputs: Most tools process everything in your browser — your data never reaches our servers
• Local storage: Some tools save preferences to your browser's local storage (stays on your device)
• Analytics: We may use basic analytics (page views, anonymous usage data) to improve our tools
• Contact form: If you message us, we receive your name and email — we never share this
• Cookies: Google AdSense uses cookies for ad personalization. You can opt out via Google Ads Settings

For complete details, read our Privacy Policy.

Since most tools process data locally in your browser:

• Clear browser data: Go to Browser Settings → Clear browsing data → Cookies and site data
• Tool reset buttons: Most tools have a "Reset" button that clears data for that specific tool
• Incognito mode: Use private/incognito browsing — data is automatically deleted when you close the window

For contact form submissions, email us at contact@dndhpcalculator.com and request deletion.