Online Square Calculator
Enter side length to get area and perimeter of a square.
Frequently Asked Questions
- What is the formula for square area?
- Area = side × side = side². Perimeter = 4 × side.
- Units?
- Use any unit (e.g. cm). Area is in unit², perimeter in the same unit.
- Same as geometric shapes?
- Yes. The squares tool is a shortcut for the square shape with one side input.
Related Calculators
Celsius to Fahrenheit Converter
Convert Celsius to Fahrenheit and Fahrenheit to Celsius instantly. Free temperature converter.
Tip Calculator
Calculate tip and split the bill. Enter bill amount, tip percentage, and number of people.
Roman Numeral Converter
Convert numbers to Roman numerals and Roman numerals to numbers. Supports 1–3999.
Combinations Calculator
Calculate C(n,r) — the number of ways to choose r items from n without order. Uses n!/(r!(n-r)!).
Combinations with Replacement Calculator
Calculate the number of ways to choose r items from n with repetition allowed. Formula: C(n+r-1, r).
Even Permutations Calculator
Count how many permutations of n objects are even (expressible as an even number of swaps). For n ≥ 2, equals n!/2.