![]() * Suggestions for features and additional constants are welcome. * Physical constants are updated to the latest values recommended by the Particle Data Group 2020 review, CODATA 2018, and the 2019 redefinition of SI base units. * Share your results via email or save them in a note using the share feature. * Avoid algebraic errors thanks to GUTCalc's unit checking: inconsistent calculations are flagged in red with an explanatory message. Need to calculate exp(10000)? No problem. * Calculations can extend over many orders of magnitude without overflow. * Use the keyboard for free-form input, or pull up handy lists of all supported units, constants, and functions. * Multiplication is implied: no need to insert *s everywhere. * Gaussian CGS (dynes, ergs, esus, and statvolts) and Planck (quantum gravity) units are also supported. GUTCalc automatically inserts factors of these constants to perform conversions and calculations in Natural units. In Natural unit mode, various physical constants (such as hbar, c, kb, and eps0) are set to 1. * Choose from SI and three types of Natural unit modes. SI mode is perfect for quick and easy calculations of everyday quantities. Natural units are fully supported, and are great for calculations in particle physics and quantum field theory. Enter a free-form expression consisting of arithmetic, SI and non-SI units, physical constants (like Planck's constant h or the speed of light c), and functions (like exp, arctan, and cosh) and GUTCalc will work out the answer including any necessary conversions. SI units are the obvious ones to use with a physics calculation. GUTCalc is a calculator that understands units. This means that your unit for velocity is your unit for length divided by your unit for. Now with cloud syncing and shared notebooks for Pro users!
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