Calculator Tools

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…

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…

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…

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…

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,…

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,…

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…

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…