All units of the NYPL will be closed July 4.
Includes a summary of the units of measurement used worldwide, a table of conversion factors, definitions of international standard units, and a powerful conversion tool.
Contains over 17,000 math and statistical calculators and dictionaries classified by specialty and language.
Simple lists of the mathematical notations for orders of magnitude, metric prefixes and common U.S. and metric equivalents.
The FXConverter (Foreign Exchange Currency Converter) provides up to date exchange rates for 164 currencies.
Calculate the distance -- as the crow flies -- between any two cities around the world.
An A-Z dictionary of the International System of Units, the metric system, and English traditional systems with a history and overview of each. Comprehensive.
Zero in on cross streets or avenues with this handy address finder.
This site provides a variety of general and subject specific calculators.
This site enables you to convert speed, distance, area, numbers, angles, clothing size, etc. It provides over 5,000 units, and 50,000 conversions.
Helpful site that provides suggestions for tipping and an enlargeable tip rate table card.
Interactive foreign exchange rate calculations using up-to-the-minute currency rates.
July. NYPL Art and Architecture Collection.
One of 700,000 pictures in the NYPL Digital Gallery
