CalcVind

Rounding Calculator

Round to decimal places, tens, hundreds or significant figures

Round a Number

Rounded

3.142 decimal places (hundredths)
3.14
Round half to even
3.15
Always round up
3.14
Always round down
3.14
Truncate
Read the guide · 4 minLakh, Crore, Million and Billion: How the Indian Number System Converts
  1. 1
    Enter a number
    Whole or decimal, positive or negative
  2. 2
    Choose the precision
    Places, tens or significant figures
  3. 3
    See it rounded
    Plus every other rounding method

How does rounding work?

Look at the digit just after the place you're rounding to. In the usual (half-up) method, 5 or more rounds up and 4 or less rounds down.

3.14159 → 2 d.p. → look at 1 → 3.14

2.675 → 2 d.p. → look at 5 → 2.68

1,250 → nearest 100 → 1,300

Banker's rounding

Round half to even sends exact halves to the nearest even digit: 2.5 → 2 and 3.5 → 4. Over many numbers the ups and downs cancel out, so totals stay unbiased. It's used in accounting and many programming languages.

Significant figures

Significant figures count from the first non-zero digit. 0.004567 to 2 significant figures is 0.0046; 45,678 to 2 significant figures is 46,000.

Related calculators

Frequently asked questions

How do I round to 2 decimal places?

Look at the third decimal place. If it's 5 or more, add 1 to the second; otherwise leave it. 4.876 → 4.88; 4.873 → 4.87.

What is 2.5 rounded to the nearest whole number?

3 with the usual half-up method, but 2 with banker's rounding (half to even).

Is rounding down the same as truncating?

For positive numbers, yes. For negative numbers they differ: −2.7 rounds down (floor) to −3 but truncates to −2.

Last reviewed: October 2026