How many significant figures in 0.00230?
0.00230 has 3 significant figures.
Significant figures
Tap a digit to see why it counts.
Round to
0.00230→0.00230
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
- 000
Leading zero: does not countLeading zeros only fix the decimal point, so they are not significant.
- 23
Non-zero digit: countsEvery non-zero digit is significant.
- 0
Trailing zero after the point: countsTrailing zeros in a number with a decimal point are significant.
2.30 × 10⁻³
- Rounded to 1 significant figure0.002
- Rounded to 2 significant figures0.0023
Nearby numbers
Rounding a value? See 2.745 to 3 significant figures.
0.00230: quick answers
How many significant figures does 0.00230 have?
0.00230 has 3 significant figures. In 0.00230, 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 0.00230 not count?
Zeros before the first non-zero digit only fix where the decimal point sits. 0.00230 in scientific notation is 2.30 × 10⁻³, and no zero is left in the mantissa.
What is 0.00230 rounded to 2 significant figures?
0.00230 rounded to 2 significant figures is 0.0023. The first dropped digit is 0, less than 5, so the last kept digit 3 stays.