Astro-Physical Calculator
http://www.astro.wisc.edu/~dolan/constants/calc.html
Fundamental Physical Constants
http://physics.nist.gov/cuu/Constants/index.html
Rekomenduojamos reikšmės - CODATA 1986.
Fundamental Physical Constants
http://www.physlink.com/Reference/PhysicalConstants.cfm
Fundamental Physical Constants -
Naturkonstanten
http://www.chemie.fu-berlin.de/chemistry/general/constants_en.html
Pagrindinės fizikinės konstantos (be garantijos).
Inverse Symbolic Calculator
http://oldweb.cecm.sfu.ca/projects/ISC/ISCmain.html
Grafinis interfeisas, paieška.
Mathsoft Constants
http://www.mathsoft.com/mathresources/constants/
The NIST (National Institute of
Standards and Technology) Reference on
Constants, Units, and Uncertainty
http://physics.nist.gov/cuu/
Physical Constants and
Astronomical Data
http://www.astro.wisc.edu/~dolan/constants.html
Physical Constants and Conversions
http://www.extremescience.com/phys-constants.htm
Physical Quantities, Constants, Units
http://www.chemie.fu-berlin.de/chemistry/general/index_en.html
Science Symbols
http://www.scenta.co.uk/tcaep/nonxml/science/symbol/index.htm
Konstantos, lygtys, matematiniai simboliai ir kt.
Table of Physical Constsnts and Atmospheric
Composition
http://www.techexpo.com/techdata/physical.html
TCAEP.co.uk
http://www.scenta.co.uk/tcaep/
Konstantos, matai skirti fiziniams mokslams: matematikai,
astronomijai ir kt.
Units and Constants
http://www.efunda.com/units/index.cfm
Units and Constants
http://www.tf.uni-kiel.de/matwis/amat/mw1_ge/kap_2/basics/b2_1_13.html
Weights & Measures
http://members.aol.com/jackproot/met/index.html
Wolfram Functions Site
http://functions.wolfram.com/
Matematikos konstatos, funkcijos ir kt.