Area Calculator
The Area Calculator helps you find the area of all common shapes like rectangles, circles, triangles, ellipses, and trapezoids using just a few values. It’s fully browser-based, so you can…
Calculator Tools
Calculator Tools include a wide range of helpful utilities designed to perform everyday numerical tasks quickly and accurately online.
GoArea Calculator
Numbers & Words to Standard Numbers Calculator
The Numbers & Words to Standard Numbers Calculator lets you take number words like “four thousand two hundred” or “two million” and instantly convert them to proper digits like 4200…
Lattice Multiplication Calculator
The Lattice Multiplication Calculator is a clever way to visualize multiplication using a grid. Also known as the gelosia method, it breaks the multiplication process into small manageable steps and…
Long Addition Calculator
The Long Addition Calculator lets you add multiple numbers together just like you’d do on paper showing each digit stacked neatly and even the carry-overs between columns. If you’re trying…
Scientific Notation Converter
The Scientific Notation Converter lets you flip between standard numbers and scientific notation with ease. Whether you’re working with large numbers like 4500000 or tiny decimals like 0.00056, this tool…
Round to Nearest Multiple Calculator
The Round to Nearest Multiple tool lets you quickly round numbers to any custom multiple whether that’s 5, 10, 0.25, or anything else you choose. Just enter your numbers, select…
Standard Form Calculator
The Standard Form Calculator helps you convert numbers to and from standard form (scientific notation) instantly. Whether you’ve got a large number like 4500000 or a small decimal like 0.00056,…
Adding and Subtracting Integers
The Adding and Subtracting Integers tool gives you a quick way to calculate totals or differences from a list of numbers. You can paste a bunch of integers positive, negative,…
Simplify Fractions Calculator
The Simplify Fractions tool reduces any fraction to its lowest terms automatically. Just type or paste a list of fractions like 6/8 or 100/25, and the tool will output the…
Roman Numeral Calculator
The Roman Numeral Calculator lets you convert numbers to and from Roman numerals instantly. Just paste a number like 42 or a Roman numeral like XLII, and the result updates…