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Significant Figures Calculator

Enter a number in this sig fig calculator to get exact significant figures, equivalent Scientific and E notations. Make your measurements more precise.

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The sig fig calculator helps you get exact significant figures in a number that helps to make measurements more precise. The tool serves as a sig fig counter and it helps to count all significant and non-significant and displays them. With that, you can also get equivalent scientific and E notations for the numbers to better analyze them in various numeral domains.

What Are Significant Figures?

These figures are the number of digits that are used to express a measured or calculated quantity. In simple words, Significant figures allow you to validate how precise a number is. The significant digits are express with some degree of confidence.

What Are The Significant Figures Rules?

You can not find the significant numbers until and unless you know certain rules for significant. The Calculator Online significant figures calculator also uses the same rule to provides you the precise measurements for sig figs.

Rule # 01: "Remember that every digit that is not zero is significant"

For Example:

  • If you input 2.547 in this significant figures calculator, it will show you four (4) sig figs in it
  • Likewise, 427 has three significant

Rule # 02: "When zeros are between digits that are not zeros are said to be significant"

For Example:

  • 800091 includes six sig figs
  • 2091 includes four sig figs

Rule # 03: "Leading zeros that appear in front of decimal point never be significant and the trailing zeros to the right of the decimals is significant"

For Example:

  • 0.005555 have four figures
  • 0.00076 have two figures

How Many Significant Figures?

  • Any non-zero digit
  • Zeros between non-zero digits as in 4004 or 54.70008
  • Trailing zeros only when there are decimals point as in 7650. or 742.4400

Let’s take a look at the given chart to know about the significant figures and scientific notation for most common numbers:

Number Scientific Notation Significant Figures
1000 1.0x103 1
10000 1.0x104 1
0.0010 1.0x10-3 3
15.0 1.5x101 3
15.0 1.5x101 3
576000 5.760x105 3
1.050 1.050x100 4
10.0 1.0x101 3
100.000 1.0x102 6
100.00 1.0x102 5
10 1.0x101 1
1261.63 1.26163x103 6
1.12500 x 10^4 1.12500x104 4
100.3 1.003x102 4
1.0200 x 10^5 1.0200x105 3
2000 2.0x103 1
250 2.5x102 2
2.0 2.0x100 2
246.32 2.463x102 5
2090 2.090x103 3
214 2.14x102 3
200 2.0x102 1
22/7 3.143x100 14
210 2.1x102 2
20.60 2.0601 4
3000 3.000x103 1
30 3.0x101 1
3.00 3.0x100 3
3.4 x 10^4 3.400x104 2
34.6209 3.46209x101 6
3500 3.5x103 2
300.00 3.0002 5
3.400 3.4x100 4
310 3.1x102 2
4.20 4.2x100 3
400 4.0x102 1
4.40 4.4x100 3
463.090 4.641x102 6
46.20 4.62x101 4
5.00 5.0x100 3
5000 5.0x103 1
50 5.0x101 1
5.40 5.4x100 3
5400 5.4x103 2
500.00 5.0x103 5
0.005 5.0x10-3 1
5.40 5.4x100 3
50.0 5.0x101 3
501.0 5.012 4
5300 5.3x103 2
60 6.0x101 1
6000 6.0x103 1
600 6.0x102 1
64.00 6.4x101 4
650 6.5x102 2
6.07x10^-15 6.07x10-15 3
6.0 6.0x100 2
6.2 6.2x100 2
6.002 6.002x100 4
6.02x10^23 6.02x1023 3
750 7.5x102 2
70 7.0x101 1
780 7.8x102 2
760 7.6x102 2
78.9+-.02 7.888x101 4
75.00 7.5x101 4
765.000 7.65x102 6
73.0000 7.3x101 6
70000 7.0x104 1
800 8.0x102 1
80 8.0x101 1
81.60 8.15x101 4
8000 8.0x104 1
811.40 8.114x102 5
8700 8.7x103 2
83.400 8.34x101 5
801.5 8.014x102 4
90 9.0x101 1
900 9.0x103 1
9000 9.0x103 1
91010 9.101x104 4
956 9.56x102 3
9010.0 9.01x103 5
918.010 9.1801x102 6
9.03 9.03x100 3
967 9.67x102 3
0.003 3.0x10-3 1
0.900 9.0x10-1 3
0.50 5.0x10-1 2
0.00120 1.2x10-3 3
0.008 8.0x10-3 1
0.01 1.0x10-1 1
0.105 1.05x10-1 3
0.0025 2.5x10-3 2
0.0560 5.6x10-2 3

How to Use Our Sig Fig Calculator?

The significant figures calculator works on multiple numbers (for instance, 7.76 / 7.88) as mentioned above or just simply rounds a number to your desired number of significant figures. Just consider the following steps to get precise measurements for significant numbers and significant figures.

Inputs You Need To Enter:

  • First of all, enter a number or expression into the given field
  • Very next, just select the operation if your expression has anyone
  • Then, simply enter the round figure that you want to round off (optional field)
  • Hit the calculate button

Output You Get:

  • Rounding Significant Figures
  • Significant Figures that the given number or expression contains
  • Number of Decimals
  • Turn significant figures in E-Notation
  • Turns significant figures in scientific notation

FAQ’s:

How Many Significant Figures In 100?

100 have 1 significant figure because leading zeros are still not significant figures if they come after any non-zero term and trailing zeros do not count as sig figs if there's no decimal point so zeros should be ignored.

How Many Significant Figures Does 0.001 Have?

By significant rules, leading zeros or trailing zeros before the decimal point does not count. These can be removed to make the number accurate. So, in the expression of 0.001, it has only 1 sig. fig. You can get more accurate significant figures by sig fig calculator that nullifies any measurement error and makes measurements more precise.

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