Welcome to techuntech — your destination for free online calculators and practical tech content. We build tools that solve real problems, from figuring out how much to tip your delivery driver to calculating your AP exam scores.
Our Free Calculators
We specialize in calculators that people actually need. Our most popular tools include:
- DoorDash Tip Calculator — Calculate fair tips for food delivery
- AP Biology Score Calculator — Estimate your AP exam scores
- ERA Calculator — Calculate baseball pitching statistics
- DOTS Calculator — Compare powerlifting strength across bodyweights
- And many more...
Tech Articles & Guides
Beyond calculators, we publish articles on web development, AI, and modern tech tools. Every article is designed to help you learn something useful and apply it right away — no fluff, just practical insights.
Our Philosophy
We believe useful tools should be free and accessible. No signups, no ads, no tricks. Just calculators that work and articles that teach. That's what techuntech is about.
Why Trust Our Calculators?
Each calculator is thoroughly researched and tested for accuracy. Our tip calculators follow industry standards for gratuity. Our AP score calculators use official College Board methodologies. Our sports calculators implement the actual formulas used by professionals.