About CalcKit
Free calculator tools — fast, clear, no signup required.
CalcKit is a free suite of online calculators for everyday math and personal finance. Our goal is simple: give you accurate, easy-to-use tools without forcing an account or burying results behind walls.
What we offer
You will find loan and investment tools such as EMI, SIP, compound interest, CAGR and amortization; health and education helpers such as BMI, age and GPA; plus utilities like currency conversion, percentage, discount, tax and unit conversion.
Privacy-first calculations
Core calculators run in your browser. We do not need your loan amount or BMI stored on our servers for the tool to work. See our Privacy Policy for cookies, ads and contact form details.
Advertising
Free tools are supported by advertising, which may include Google Ads or similar networks. Ads help us keep calculators free for everyone.
Feedback
Found a bug or want a new calculator? Reach out on the Contact page. We improve CalcKit based on real usage and user suggestions.