General
Heat Index Calculator
Calculate the summer Heat Index ("feels like" temperature) and heat illness danger level from air temperature and relative humidity.
Blog Archive
Calculator Category: other
Explore all editorial articles, guides, and tutorials filed under "Calculator Category: other".
General
Day of the Week Calculator
Find out what day of the week (Monday through Sunday) you were born on or any past or future historical date.
General
Voltage Drop Calculator
Calculate voltage drop, percentage loss, and end-of-run voltage across copper and aluminum conductors according to the National Electrical Code (NEC).
General
Roof Calculator
Calculate roof surface area, roofing squares, bundles of asphalt shingles, and pitch multiplier adjustments.
General
Shoe Size Calculator
Convert shoe sizes between US Men’s, US Women’s, UK, European (EU), Japanese (JP), and foot length in inches and centimeters.
General
Time Zone Calculator
Convert local time across worldwide time zones with UTC offset differences and Daylight Saving Time (DST) rules.
General
Square Footage Calculator
Calculate square footage (sq ft), square yards, and square meters for rooms, homes, landscaping, and construction projects.
General
Roofing Calculator
Calculate shingles, squares, and roof area for residential roofing projects.
General
Shoe Size Conversion
Convert international shoe sizes between US, UK, European, and Japanese foot measurements.
General
Military Time Calculator
Convert 12-hour AM/PM standard clock time to 24-hour military time, with NATO phonetic pronunciations and military time charts.