Debt to the Penny
Daily national debt figures for the current month, monthly for the previous year, annual public debt outstanding back to 1987 and also from 1791 to the present.
Historical Currency Converter
Currency from any of over 164 currencies from about 1970 to yesterday.
Inflation Calculator
Inflation calculator for adjusting costs from one year to another using the Consumer Price Index (CPI) inflation index.
Universal Currency Converter
For historical currency data (from Jan. 1990) check here.
U.S. National Debt Clock
Updated every second, this source calculates the national debt of the U.S. which is approaching 5 gazillion dollars.
Molecular Weight Calculator
Molecular weight and physical molecular weight by chemical molecular formula.
Sun and Moon Calculator
Daily and yearly times for sunrise, sunset, twilight, moonrise, moonset, and moon phases. From the U.S. Naval Observatory.
Tide Tables
High and low tide tables for hundreds of sites in the United States . From the University of South Carolina.
Unit Conversion Tool
Conversions to metric. Separate searches for distance, area, volume, mass, speed, temperature, pressure, energy, power, and force.
Local Times Around the World
Time for cities around the world. Listed by continent and by country.
Time Zone Converter
Provide the time zone, time and date to convert from, and the time zone to convert to.
