Frequently asked Questions

We take accuracy up to 99% seriously! Our calculators use standard formulas and algorithms that are regularly reviewed by our team. That said, we always recommend:

• Double-check your inputs
• Using our calculators as guides rather than absolute answer
• Consult a professional for important financial or health decisions

If you ever spot an error, please let us know - we'll buy you a virtual coffee!

Great question! We're always adding new calculators based on what our users need. Here's how we decide what to build next:

1. Popular demand: If multiple people request something, it jumps to the top of our list
2. Uniqueness: We focus on tools that aren't easily available elsewhere
3. Usefulness: Will this help people in their daily lives?

Send us your suggestion - we'd love to hear what you need!

Nope! We believe in easy access to helpful tools, so you can use all our calculators without signing up. We don't even ask for your email (unless you want to contact us).

The only reason you'd want an account is if we ever add features like saving calculations - and even then, we'll keep the core tools completely free and open.

Oh no! Sorry you're having trouble. Here are some quick fixes to try:

• Refresh the page: Sometimes browsers get cranky
• Check your internet: Our calculators need a connection to load properly
• Update your browser: We work best with Chrome, Firefox, Safari, or Edge (updated versions)

If you're still stuck, contact us and tell us:
- What device you're using
- What browser (including version if possible)
- What exactly isn't working

We respect your privacy. Here's the simple version:

• No storage: Your calculations happen in your browser and disappear when you close the page
• No tracking: We don't record what specific calculations you perform
• Basic analytics: We only collect anonymous usage data (like how many people visit) to improve the site

You can read the full details in our Privacy Policy, but we designed CalcMaster to be as private as possible.

We get this question a lot! Here's our philosophy:

• No ads: We hate annoying pop-ups as much as you do
• No paywalls: All core calculators will always be free
• Passion project: Right now, we fund this through our day jobs because we believe in the mission

If you'd like to support us, the best thing you can do is share CalcMaster with someone who might find it helpful!