Simple tools. Useful results.
Welcome to UtilityKit — a simple collection of online tools designed to make everyday calculations and tasks easier.
Our Foundation
We created UtilityKit with one simple idea: Simple tools. Useful results.
Many everyday tasks don't need complicated software. Whether you want to calculate GST, check an EMI, work out your profit, calculate your age, convert units, or create a QR code, you should be able to get the answer quickly without creating an account or going through unnecessary steps.
That's what UtilityKit is built for.
What You Can Do With UtilityKit
UtilityKit provides free online tools for different daily and business needs, including:
Calculate percentages quickly with our free percentage calculator. Find a percentage of a number, calculate percentage change, and solve common percentage problems easily.
Calculate Indian GST under the updated GST 2.0 structure (0%, 5%, 18%, 40% and previous slabs). Add or remove tax with instant CGST, SGST, and IGST breakdowns.
Free online EMI calculator for home loans, car loans, personal loans, and education loans. View complete interest breakdowns and monthly payment schedules instantly.
Free online profit margin and markup calculator for business owners, Amazon/Flipkart sellers, and freelancers. Calculate net profit and gross margin % with zero fees.
Free online selling price calculator. Find the ideal product pricing and MRP based on unit cost, overhead expenses, desired profit margin, and optional GST.
Free online chronological age calculator. Calculate exact age from date of birth in years, months, weeks, days, hours, and minutes with birthday countdown.
Free online date calculator and day counter. Find days between two dates, exclude weekends/holidays, or calculate future and past calendar dates accurately.
Free online fuel cost and trip mileage calculator. Calculate petrol, diesel, or gas expense for any road trip with car mileage and split cost per passenger.
Free online universal unit converter. Quickly convert metric and imperial units including kg to lbs, meters to feet, Celsius to Fahrenheit, and MB to GB.
Free online QR code generator. Create high-resolution QR codes locally in your browser with zero watermark or signup. Download as PNG or SVG with 100% privacy.
Free online word and character counter. Real-time text statistics including words, characters with/without spaces, sentences, reading time, and speaking time.
Free online image compressor. Compress JPG, PNG, and WebP file sizes by up to 90% without losing quality. 100% private in-browser compression with no file size limits.
Free online SIP calculator for mutual funds. Estimate returns on monthly investments, wealth gain, and total maturity amount with compound interest charts and tables.
Free online marks percentage calculator for school and college students. Calculate total exam percentage, subject-wise marksheet totals, CBSE CGPA to percentage, and final target marks.
Free online image converter. Convert JPG, PNG, WebP, SVG, AVIF, GIF, BMP, TIFF, and HEIC files instantly in your browser with zero server uploads. 100% free and private.
Calculate the cost of any weight from a price per kilogram. Find prices for 50g, 100g, 134g, 250g, 500g or any quantity with this free gram price calculator.
Suresh Murmu
Builder, Independent Programmer & Live Coder
Hi, I'm Suresh Murmu — the creator and developer behind UtilityKit. After completing my 12th grade, I chose the unconventional path of leaving formal college to dive head-first into software engineering, web development, and computer science through self-taught, hands-on practice.
I am actively learning modern full-stack development, sharpening my algorithms, and conducting live coding sessions as I build real-world software. I created UtilityKit with one clear philosophy: software should be fast, private, completely client-side, and simple to use for everyone — from students and teachers to entrepreneurs and freelancers.
Our Future
UtilityKit is an evolving project. We plan to continue improving existing tools and adding new calculators and utilities based on what people actually need in their daily work and lives.