ProCalc started as a simple hobby project. Ayush Jain, a tech enthusiast based in Bangalore, India, found himself constantly building small calculators for personal use — whether it was figuring out SIP returns, estimating YouTube ad revenue, or projecting career salary growth. Spreadsheets worked, but they were clunky, hard to share, and not very fun to use.
So he decided to build something better: a clean, fast, and completely free website where anyone could run the same calculations instantly — no sign-ups, no downloads, no data collection. What began as a handful of personal tools quickly grew as friends, colleagues, and online communities started using and sharing them.
Today, ProCalc offers dozens of calculators and predictors spanning finance, the creator economy, artificial intelligence, business metrics, career planning, education, real estate, fitness, e-commerce, and more. And we're just getting started.
We believe that everyone deserves access to powerful financial and analytical tools — without paywalls, without complicated interfaces, and without giving up their personal data. Our mission is simple:
ProCalc is home to a growing library of free online calculators and predictors across a wide range of categories:
SIP, EMI, compound interest, FD, PPF, ROI, and more.
YouTube, Instagram, Twitch, and podcast monetization calculators.
OpenAI, Claude, Gemini API cost estimators and AI infrastructure calculators.
Break-even, profit margin, CAC, LTV, MRR, and startup metrics.
Salary growth projections, net worth predictions, and career planning.
NEET rank estimators, JEE cutoff predictors, and GPA calculators.
Property price growth, rent vs buy, and rental yield calculators.
YouTube, Instagram, TikTok, and podcast audience growth forecasters.
Early retirement predictors, FIRE number calculators, and pension tools.
Weight loss timelines, muscle gain estimators, and BMI calculators.
Shopify revenue, Amazon FBA profit, and dropshipping calculators.
ProCalc is a project by Data Arc Technologies, managed by Ayush Jain. Based in Bangalore, Karnataka, India, we are passionate about building useful, accessible, and privacy-respecting tools for the internet.
Data Arc Technologies focuses on creating data-driven digital products that solve real-world problems. ProCalc is our flagship consumer product — born from the belief that good tools should be free, fast, and available to everyone.
Every calculator is built with carefully validated formulas. We use industry-standard financial models, established scientific formulas, and real-world benchmarks to ensure our results are reliable and trustworthy.
We don't collect personal data. Period. All calculations run entirely in your browser — your numbers never leave your device. No accounts, no tracking, no data selling.
Our tools are designed to give you answers in seconds, not minutes. Clean interfaces, instant results, and plain-English explanations — because good tools shouldn't require a manual.
Every calculator on ProCalc is 100% free to use, with no hidden paywalls or premium tiers. We believe financial literacy tools should be accessible to everyone, regardless of their background or budget.
Have a suggestion for a new calculator? Found a bug? Just want to say hello? We'd love to hear from you.
Visit our Contact Us page to get in touch, or email us directly at ayushaugust27@gmail.com.