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Why use ConversionsHome?
ConversionsHome provides free online calculators and unit converters. Every calculator shows step-by-step solutions, clear formulas, and worked examples. Most sites give you a number and leave you guessing. We help you understand the answer. From percentage and BMI calculators to unit converters for weight, length, and temperature — everything is free on one page, with no sign-up required.
Frequently asked questions
What is ConversionsHome?
ConversionsHome is a free website with online calculators and unit converters. It covers maths, money, health, science and everyday unit conversions. Every tool gives instant, accurate answers.
Are the calculators really free?
Yes. Every calculator and converter on ConversionsHome is 100% free. There are no hidden charges, accounts or premium locks.
Do I need to sign up to use the tools?
No. All tools work without an account. Open any calculator, enter your numbers, and read the answer.
How accurate are the calculators?
Very accurate. Each tool uses standard, published formulas and is tested against known values. Every page shows worked examples so you can check the maths.
Can I use ConversionsHome on my phone?
Yes. The whole site is mobile friendly. Pages and calculators adapt to small screens automatically.
Which calculators are available?
Over 40 free tools. Popular ones include percentage, BMI, age, calorie, loan, mortgage, EMI, zakat and scientific calculators, plus unit converters for weight, length, temperature, area, volume, speed, time and more.