Random Calculators
Welcome to Random Calculators, your comprehensive collection of free online calculators covering mathematics, science, engineering, finance, and everyday life.
Whether you need to solve complex equations, calculate financial metrics, or convert units, we have a calculator for you. Browse by category below to find the tool you need.
All calculators are free to use, require no registration, and work directly in your browser.
Browse by Category
Mathematics & Statistics
6 subcategories • 21 calculators
Physics & Engineering
5 subcategories • 18 calculators
Chemistry
3 subcategories • 9 calculators
Biology & Medicine
3 subcategories • 11 calculators
Finance & Economics
6 subcategories • 72 calculators
Computer Science & Data
3 subcategories • 10 calculators
Construction & Architecture
4 subcategories • 26 calculators
Everyday Life & Health
2 subcategories • 7 calculators
Environmental Science
2 subcategories • 6 calculators
Education & Exams
4 subcategories • 15 calculators
Travel & Immigration
1 subcategory • 2 calculators
Automotive
2 subcategories • 13 calculators
Insurance
1 subcategory • 5 calculators
Wedding & Events
2 subcategories • 7 calculators
Pet Care
2 subcategories • 5 calculators
Healthcare & Medical Costs
2 subcategories • 7 calculators
Miscellaneous & Fun
2 subcategories • 16 calculators