4/20 Calculator

Grams per Ounce:

Ounces to Calculate:

function calculateGrams() { var gramsPerOunceInput = document.getElementById("gramsPerOunce"); var ouncesToCalculateInput = document.getElementById("ouncesToCalculate"); var resultDiv = document.getElementById("result"); var gramsPerOunce = parseFloat(gramsPerOunceInput.value); var ouncesToCalculate = parseFloat(ouncesToCalculateInput.value); if (isNaN(gramsPerOunce) || isNaN(ouncesToCalculate) || gramsPerOunce <= 0 || ouncesToCalculate < 0) { resultDiv.innerHTML = "Please enter valid positive numbers for grams per ounce and ounces to calculate."; return; } var totalGrams = gramsPerOunce * ouncesToCalculate; resultDiv.innerHTML = "

Total Grams:

" + totalGrams.toFixed(2) + " grams"; } .calculator-wrapper { font-family: sans-serif; border: 1px solid #ccc; padding: 20px; border-radius: 8px; max-width: 400px; margin: 20px auto; background-color: #f9f9f9; } .calculator-wrapper h2 { text-align: center; margin-bottom: 20px; color: #333; } .input-group { margin-bottom: 15px; display: flex; flex-direction: column; } .input-group label { margin-bottom: 5px; font-weight: bold; color: #555; } .input-group input[type="number"] { padding: 10px; border: 1px solid #ccc; border-radius: 4px; font-size: 16px; } .calculator-controls { text-align: center; margin-top: 20px; } .calculator-controls button { padding: 10px 20px; background-color: #4CAF50; color: white; border: none; border-radius: 4px; font-size: 16px; cursor: pointer; transition: background-color 0.3s ease; } .calculator-controls button:hover { background-color: #45a049; } .calculator-result { margin-top: 25px; padding: 15px; border: 1px solid #eee; background-color: #fff; border-radius: 4px; text-align: center; } .calculator-result h3 { margin-bottom: 10px; color: #4CAF50; } .calculator-result p { font-size: 18px; font-weight: bold; color: #333; }

Understanding the 4/20 Calculator

The "4/20 Calculator" is a straightforward tool designed to help you convert ounces of cannabis into grams. This is a common requirement for consumers, cultivators, and retailers who need to accurately measure and understand quantities, especially when dealing with different units of weight.

Why Convert Ounces to Grams?

In many parts of the world and within the cannabis industry, ounces are a traditional unit of measurement. However, grams are the standard metric unit and are often used for smaller, more precise quantities. This calculator bridges that gap, allowing for easy conversion.

How the 4/20 Calculator Works

The calculator uses a simple conversion factor: 1 ounce is approximately equal to 28.35 grams. The tool allows you to input the number of ounces you have, and it multiplies that by the grams-per-ounce conversion factor to give you the total weight in grams.

Input Fields:

Grams per Ounce: This field is pre-filled with the standard conversion value (28.35 grams). You can adjust this if you are working with a different specific convention or require a different precision, though 28.35 is the widely accepted standard.
Ounces to Calculate: This is where you enter the quantity of cannabis you wish to convert from ounces into grams.

Calculation:

The core of the calculator's logic is the multiplication:

Total Grams = (Ounces to Calculate) * (Grams per Ounce)

Example Usage:

Let's say you have just purchased a quarter-pound of cannabis. A pound is 16 ounces, so a quarter-pound is 4 ounces.

Enter 28.35 in the "Grams per Ounce" field.
Enter 4 in the "Ounces to Calculate" field.

Clicking the "Calculate Grams" button would yield:

4 ounces * 28.35 grams/ounce = 113.40 grams

So, 4 ounces of cannabis is equivalent to 113.40 grams.

Another common scenario is converting a single ounce:

"Grams per Ounce": 28.35
"Ounces to Calculate": 1

Result: 28.35 grams

This calculator is an essential tool for anyone who regularly interacts with cannabis in terms of weight, ensuring accuracy and ease of understanding across different measurement systems.