Custom Converter is a free collection of online calculators, converters and file tools that answer everyday questions in seconds: how much tax comes off a salary, what a loan instalment will be, how many days are left until Eid, or how to turn phone photos into a single PDF.
What we offer
We publish more than 160 tools across calculators, unit converters, PDF and image tools, student tools, business tools, international and Pakistan-specific tools, date and time tools, Islamic tools, cricket calculators and packaging and shipping calculators. Each tool page explains the formula, gives a worked example and answers common questions.
How we build our tools
Accurate and transparent
Calculations use standard published formulas and official rates where they apply, such as FBR tax slabs and HEC grading. We show the formula so you can check the result yourself.
Private by design
Our tools run in your browser. Numbers you type and files you open are processed on your own device and are not uploaded to our servers.
Free for everyone
There is no sign-up and no usage limit. The site is supported by advertising.
Get in touch
Have a suggestion or found a mistake? Visit our contact page. We read every message.