Welcome to the Water Fasting Weight Loss Calculator! It’s a simple tool that helps you guess how much weight you might lose during a water fast. Just follow these easy steps: Pick Gender: Choose if you’re a boy or a girl. Set Fasting Days: Tell us how many days you’ll fast. Choose Units: Decide if you want to measure in pounds or kilograms. Enter Starting Weight: Type in your current weight before fasting. Click “Calculate”: Press the button to see an estimated weight loss. Keep in mind, that this is just an estimate and not exact. Remember to consult a healthcare expert before trying fasting or making big changes to your diet.