I built 12 free calculators for construction, finance, art & health. Roast my UX!

Hey PH fam! 👋

I'm the maker of numvex.net – a suite of free, no-signup calculators across multiple categories.

I just launched 12 calculators covering construction, home improvement, finance, art, and health. Here's the full list:

Construction:

• Concrete Slab Calculator

• Drywall Mud Calculator

• Mulch and Soil Calculator

• Firewood Cord Calculator

• Landscape Rock Calculator

Home Improvement:

• Kitchen Remodel Cost Calculator

• Bathroom Remodel Cost Calculator

Finance:

• CD Calculator

• CD Ladder Calculator

Art & Paint:

• Acrylic Paint Coverage Calculator

• Canvas Painting Price Calculator

Health:

• Daily Water Intake Calculator

What makes Numvex different:

✅ Transparent calculations – You can see every formula and conversion factor
✅ Updated pricing data – 2026 material costs from HomeAdvisor, Angi, etc.
✅ Privacy-first – All calculations run in your browser. No data sent to servers, no cookies, no accounts
✅ Mobile-friendly – Works on desktop, tablet, and phone

I need your honest feedback:

👉 Try them here: https://numvex.net/calculators/

Questions for you:

1. Which calculator did you try, and was it accurate?

2. What category or calculator should I build NEXT?

3. Is the interface intuitive or confusing?

I built this for contractors, DIY renovators, homeowners, artists, and finance enthusiasts. Your feedback will shape what I build next. 🪙

P.S. – 100% free, no ads, no signup, no tracking.