67 and 21 percent error (%)
Use this calculator when comparing a experimental value to a theoretical value. We think you reached us looking for answers to questions like: 1) What is the percent error supposing 21 as the measured value and 67 as the calculated value? 2) What is the absolute error between 67 and 21 supposing 67 as the theoretical value? Or may be: 67 and 21 percent error (%) 

See the solutions to these problems just after the Percent Error Calculator below. 



How to calculate Percent Error  Step by Step SolutionThe Percent Error Calculator uses this formula:
The terms "Experimental" and "Theoretical" used in the equation above are commonly replaced with similar terms. Some terms also used for experimental are "measured," "calculated," or "actual" and for theoretical the terms "accepted" and "calculated" are frequently used. Here are the solutions to the questions stated above:1) What is the percent error supposing 21 as the measured value and 67 as the calculated value?Use the above formula to find the percent error. So, replacing the given values, we havePercent error = [(21  67) / 67] x 100 = (46 / 67) x 100 = 68.65671641791 % (negative error) In this case we have a % of negative error because the experimental is smaller than the theoretical. 2) What is the absolute error between 67 and 21 considering 67 as the theoretical value?This problem is not about percent or relative error, but about absolute error. The solution is very simple:Absolute error, or error = Experimental  Theoretical = 21  67 = 46 (negative error) 



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