Light Year Conversion

Astronomical Unit Calculator6 options

Mobile-friendly astronomical unit converter that lets you convert between AU and kilometers, light minutes, light seconds, light years, miles, and parsecs. Shows a worked result and lets you swap units. ([calculateme.com](https://www.calculateme.com/astronomy/astronomical-units/))

Area Calculator4 options

This area calculator determines the area of a number of common shapes, including rectangle, triangle, trapezoid, circle, sector, ellipse, and parallelogram.

Feet to inches