Calculate precise ingredient volumes based on custom ratios and target batch sizes.
Required Ingredient Breakdown
Understanding Batch Mixing Ratios
A batch mix calculator is an essential tool for contractors, gardeners, and manufacturers who need to scale recipes or formulas while maintaining strict consistency. Whether you are mixing concrete, nutrient solutions, or chemical compounds, the ratio determines the integrity of the final product.
Ratios are typically expressed as X:Y:Z. For example, a standard 1:2:4 concrete mix means for every 1 part of cement, you need 2 parts of sand and 4 parts of stone. This calculator takes those ratio parts, sums them up, and distributes your total desired volume across each component proportionally.
How to Calculate a Batch Mix Manually
To calculate the amount of an individual ingredient needed, follow this formula:
Ingredient Amount = (Specific Part / Sum of All Parts) × Total Desired Batch Volume
Example: If you want 70 kg of a 1:2:4 mix:
Total Parts = 1 + 2 + 4 = 7
Part A = (1 / 7) × 70 = 10 kg
Part B = (2 / 7) × 70 = 20 kg
Part C = (4 / 7) × 70 = 40 kg
Practical Applications
Construction: Mixing mortar, concrete, or grout according to structural specifications.
Agriculture: Preparing fertilizer concentrates and NPK (Nitrogen, Phosphorus, Potassium) blends.
Chemistry: Diluting stock solutions to specific molarities or concentrations.
Cooking/Food Production: Scaling industrial recipes for large-scale food manufacturing.
function calculateBatchMix() {
var totalVol = parseFloat(document.getElementById('totalVolume').value);
var uName = document.getElementById('unitName').value || "units";
var r1 = parseFloat(document.getElementById('ratio1').value) || 0;
var r2 = parseFloat(document.getElementById('ratio2').value) || 0;
var r3 = parseFloat(document.getElementById('ratio3').value) || 0;
var r4 = parseFloat(document.getElementById('ratio4').value) || 0;
var resultDiv = document.getElementById('batchResult');
var outputArea = document.getElementById('resultOutput');
if (isNaN(totalVol) || totalVol <= 0) {
alert("Please enter a valid total batch size.");
return;
}
var totalParts = r1 + r2 + r3 + r4;
if (totalParts 0) {
html += '