Order of Magnitude Calculator Power of 10 of a number. Number Order of magnitude 3 Step-by-step with your numbers: 1. Values used: 2. Number = 4,500 3. Order of magnitude = 3 Did we solve your problem today? 👍 Yes 👎 No Thanks for the feedback! Roughly: 10^n where n is the floor of log10. FAQ Compare? A difference of 1 order = 10×. Related calculators Scientific Notation Calculator Convert a number to scientific notation. Logarithm Calculator Find the logarithm of a number in any base. Standard Form Calculator Write a number in A × 10ⁿ form.