Keyboard Finger Load Analyzer

In short Perfectly even typing would put 12.5% of the work on each of eight fingers. Real QWERTY typing does not come close: the right index finger typically handles close to 20% of all keystrokes, the little fingers handle far less, and the home row carries 30 to 35% of the total. Running your own text through it rather than a standard sample is what makes the result yours — code, with its brackets and underscores, loads the little fingers very differently from prose. The home-row figure is the one worth watching, because it is the clearest measure of how much your hands are moving. A layout or a text that keeps more work on the home row means less travel and less reaching, which is the mechanism behind most claims that an alternative layout is more comfortable. A finger carrying a great deal more than its share is the other thing to look for, particularly if you already have discomfort in that hand. Two caveats: this assumes standard touch-typing finger assignment on a US layout, so it does not describe what your hands actually do if you type with four fingers, and load distribution is a proxy for strain rather than a measurement of it.