About Tools Hub

Tools Hub is a free collection of 25 online calculators and utilities, built and maintained by UMARIX TECHNOLOGIES (SMC-PRIVATE) LIMITED. Our goal is simple: the calculations and small utilities people need every day — a mortgage payment with taxes and insurance, an hourly wage turned into a salary, a GPA on the US 4.0 scale, a photo compressed for an upload form — should be fast, free, accurate and private.

Made for the USA first

Most of our visitors are in the United States, so the tools speak their language: dollars and cents, pounds and feet and inches, Fahrenheit, MM/DD/YYYY dates, the 2,080-hour work year, PMI and escrow on mortgages, and letter grades on a 4.0 scale. Where it helps, metric units are one click away.

Private by design

Every tool on this site runs entirely in your web browser. The numbers you type, the text you paste and the images you process are never uploaded to our servers, because there is nothing to upload them to — the pages are static files and the math happens on your own device. That makes the tools safe for pay details, drafts, customer lists and family photos.

How the site is funded

Tools Hub is free to use and is supported by advertising. Ads keep the calculators free for students, home buyers, small businesses and anyone else who needs a quick, trustworthy answer.

Accuracy

We use standard formulas — the same amortization math lenders use, the CDC's BMI categories, and the standard 4.0 GPA scale — and we show worked examples on every page so you can verify the method yourself. Results are estimates for general information, not financial, medical or legal advice.

Questions or suggestions for a new tool? Visit our contact page.