Show a number to two decimal places
You can use number_format():
return number_format((float)$number, 2, '.', '');
Example:
$foo = "105";
echo number_format((float)$foo, 2, '.', ''); // Outputs -> 105.00
This function returns a string.
Format number to always show 2 decimal places
(Math.round(num * 100) / 100).toFixed(2);
Live Demo
var num1 = "1";document.getElementById('num1').innerHTML = (Math.round(num1 * 100) / 100).toFixed(2);
var num2 = "1.341";document.getElementById('num2').innerHTML = (Math.round(num2 * 100) / 100).toFixed(2);
var num3 = "1.345";document.getElementById('num3').innerHTML = (Math.round(num3 * 100) / 100).toFixed(2);
span { border: 1px solid #000; margin: 5px; padding: 5px;}
<span id="num1"></span><span id="num2"></span><span id="num3"></span>
How do I display a decimal value to 2 decimal places?
decimalVar.ToString("#.##"); // returns ".5" when decimalVar == 0.5m
or
decimalVar.ToString("0.##"); // returns "0.5" when decimalVar == 0.5m
or
decimalVar.ToString("0.00"); // returns "0.50" when decimalVar == 0.5m
How to display two digits after decimal point in SQL Server
select cast(your_float_column as decimal(10,2))
from your_table
decimal(10,2)
means you can have a decimal number with a maximal total precision of 10 digits. 2 of them after the decimal point and 8 before.
The biggest possible number would be 99999999.99
Formatting a number with exactly two decimals in JavaScript
To format a number using fixed-point notation, you can simply use the toFixed method:
(10.8).toFixed(2); // "10.80"
var num = 2.4;
alert(num.toFixed(2)); // "2.40"
Note that toFixed()
returns a string.
IMPORTANT: Note that toFixed does not round 90% of the time, it will return the rounded value, but for many cases, it doesn't work.
For instance:
2.005.toFixed(2) === "2.00"
UPDATE:
Nowadays, you can use the Intl.NumberFormat
constructor. It's part of the ECMAScript Internationalization API Specification (ECMA402). It has pretty good browser support, including even IE11, and it is fully supported in Node.js.
const formatter = new Intl.NumberFormat('en-US', {
minimumFractionDigits: 2,
maximumFractionDigits: 2,
});
console.log(formatter.format(2.005)); // "2.01"
console.log(formatter.format(1.345)); // "1.35"
How to print a float with 2 decimal places in Java?
You can use the printf
method, like so:
System.out.printf("%.2f", val);
In short, the %.2f
syntax tells Java to return your variable (val
) with 2 decimal places (.2
) in decimal representation of a floating-point number (f
) from the start of the format specifier (%
).
There are other conversion characters you can use besides f
:
d
: decimal integero
: octal integere
: floating-point in scientific notation
How to display a float with two decimal places?
You could use the string formatting operator for that:
>>> '%.2f' % 1.234
'1.23'
>>> '%.2f' % 5.0
'5.00'
The result of the operator is a string, so you can store it in a variable, print etc.
How to round to 2 decimals with Python?
You can use the round
function, which takes as its first argument the number and the second argument is the precision after the decimal point.
In your case, it would be:
answer = str(round(answer, 2))
Rounding off to two decimal places in SQL
You could cast your result as numeric(x,2)
. Where x <= 38
.
select
round(630/60.0,2),
cast(round(630/60.0,2) as numeric(36,2))
Returns
10.500000 10.50
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