## How to use sig fig calculator?

To use the sig fig calculator:

• Enter the number in the input box.
• Use the scroll bar to set the round value.
• Hit the Calculate button to get the rounding significant figures.

## What are significant figures?

Significant figures are the meaningful digits in a number. They tell us the accuracy or usefulness of a number to an extent.
For example,
The number 2304 has 4 significant figures in it,
while the number 0.0430 has 3 significant figures which are 4, 3, and 0.

## How to find significant figures?

Significant digit calculator eases the calculation of significant figures in a complex number. For manual calculation, there are some rules of significant figures that are also incorporated in this tool.

#### Significant figures rules

Below are the rules to find significant figures:

1. All non-zero digits are significant figures.

5296 4 significant figures
2.71 3 significant figures

2. All zeros are significant if they are between any non-zero digits.

0085 2 significant figures

3. Zeros are not significant if they are on the left side (leading) of the first non-zero number.

0.0076 2 significant figures

4. Trailing zeros are significant if they come after the decimal point.

48.00 4 significant figures

5. Trailing zeros are not significant if the number does not contain a decimal point.

82000 2 significant figures

#### Example

Find the significant figures in the following numbers.

0.0038210,
81.0070

#### Solution

0.0038210 has 5 significant figures which are 38210. The zeros on the left side will not be accumulated as per the significant figures rule

81.0070 has 6 significant figures. See the rules above for reference.

## FAQs

##### 1How many significant figures are there in 2020?

There is a total of 3 significant figures 2, 0 and 2 in 2020.The trailing zero on the right hand will not be considered as a significant figure because there is no decimal in the number.

##### 2How many significant figures does 0.0560 have?

0.0560 has 3 significant figures which are 5, 6 and 0.

##### 3How many significant figures are there in 500?

The number 500 has only 1 significant figure 5. The trailing zeros are not significant in this case.