Math Tools

Calculate the GCD, LCM, and simplified ratio for multiple integers.

Calculate circle diameter, circumference, and area from a given radius.

Calculate pace and speed from distance and time for running, walking, and race planning.

Estimate future savings growth with compound interest, monthly deposits, and a selected time period.

Estimate simple interest, total interest, and the final amount using principal, annual rate, and years.

Format numbers for dashboards, pricing, reports, finance, localization, and user interfaces.

Convert integers between common number bases and review the result in binary, octal, decimal, hex, and more.

Convert room, land, and floor area values with a quick comparison across common units.

Turn numbers into English words for financial, educational, and documentation use cases.

Calculate reduced aspect ratios and matching sizes for responsive images, displays, video frames, and design layouts.