How many significant figures in 0.0100?
0.0100 has 3 significant figures.
Significant figures
Tap a digit to see why it counts.
Round to
0.0100→0.0100
Nothing is dropped.
Add, subtract, multiply, divide
- 4.2374 significant figures
- 2.513 significant figures
Exact result1.68804780876
Multiply or divide: keep the fewest significant figures.
Digit by digit
- 00
Leading zero: does not countLeading zeros only fix the decimal point, so they are not significant.
- 1
Non-zero digit: countsEvery non-zero digit is significant.
- 00
Trailing zero after the point: countsTrailing zeros in a number with a decimal point are significant.
1.00 × 10⁻²
- Rounded to 1 significant figure0.01
- Rounded to 2 significant figures0.010
Nearby numbers
Rounding a value? See 2.745 to 3 significant figures.
0.0100: quick answers
How many significant figures does 0.0100 have?
0.0100 has 3 significant figures. In 0.0100, the zeros at the start only fix the decimal point, and trailing zeros count because there is a decimal point.
Why do the zeros at the start of 0.0100 not count?
Zeros before the first non-zero digit only fix where the decimal point sits. 0.0100 in scientific notation is 1.00 × 10⁻², and no zero is left in the mantissa.
What is 0.0100 rounded to 2 significant figures?
0.0100 rounded to 2 significant figures is 0.010. The first dropped digit is 0, less than 5, so the last kept digit 0 stays.