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Welcome to the

Cool
Calm
Calculator
Collection

Calculator Zen is the cool, calm and collected resource for free online calculators of many kinds 😎

What type of calculator do you need?

Browse our free online calculators serving many different types of calculation needs

Chatbot Calculators

Business Calculators

Conversion Calculators

Financial Calculators

Health & Fitness Calculators

Marketing Calculators

Math Calculators

Service Calculators

Plus many more to come! Subscribe to receive updates when new calculators are released.

Famous & noteworthy calculator quotes

Here are some interesting and amusing snippets from famous people mentioning calculators

I've always said to myself that if a little pocket calculator can do it why shouldn't I?

Roald Dahl - Author and WWII ace fighter pilot

In the midst of this chopping sea of civilized life, such are the clouds and storms and quicksands and thousand-and-one items to be allowed for, that a man has to live, if he would not founder and go to the bottom and not make his port at all, by dead reckoning, and he must be a great calculator indeed who succeeds. Simplify, simplify.

Henry David Thoreau - Essayist, poet, and philosopher

My fellow nerds and I will retire to the nerdery with our calculators.

David Spade - Film and television actor

Speaking of human computers, there is a guy named Art Benjamin, he's a human calculator. He says it's a skill he learned as a kid. Now he's a math professor at Harvey Mudd. He can find the square root of a six-digit number in a few seconds. Practice.

Bill Nye - Science communicator and television presenter

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NEWEST CALCULATORS

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Created by Convoboss

©Calculator Zen, All rights reserved.