# How to Create Simple Calorie Calculator Using PHP

Hello guys, This tutorial is all about How to Create Simple Calorie Calculator Using PHP. Determining our calorie will help us have a balanced diet and Calorie are essential for human health.

So let’s get started:

First create a class and name it “index.php” and add this code:

```<html>
<body>
<center>
<form method="post">
Gender:
<Select name="gender" ><br>
<option>Male</option>
<option>Female</option>
</select><br><br>
Age:
<input name="age" type="text"> yrs.<br><br>
Weight:
<input name="weight" type="text">kgs.<br><br>
Height:
<input name="height" type="text">cm.<br><br>
<br><input type="Submit" value="Calculate">

<?php
\$age=\$_POST['age'];
\$weight=\$_POST['weight'];
\$height = \$_POST['height'];
\$calories="0.0215183";
\$gender=\$_POST['gender'];

switch (\$gender){
case 'Female':
\$gender= 655 + (9.6 * \$weight ) + (1.8 * \$height) - (4.7 * \$age);
echo "<p>Your estimated daily metabolic rate is \$gender </p>";
echo "<p>This means that you need rouhgly \$gender calories a day to maintain your current weight.</p>";

break;
case 'Male':
\$gender=66 + (13.7 *\$weight) + (5 * \$height) - (6.8 * \$age);
echo "<p>Your estimated daily metabolic rate is \$gender </p>";
echo "<p>This means that you need rouhgly \$gender calories a day to maintain your current weight.</p>";

}
?>

</form>
</center>
</body>
</html>```

Simple as that! Go and test the program now

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### 2 thoughts on “How to Create Simple Calorie Calculator Using PHP”

1. if we have to add person daily activity like he/she is active ,moderate active something like that then who we calculate calories?????

give me the reply as soon as possible.
Thanks!

2. It’s wonderful, just give it some CSS and let users enjoy it.