Knitting Decrease Calculator
This calculator helps you determine how many stitches to decrease per row or round to achieve your desired shaping in your knitting project. Enter the total number of stitches you have, the number of stitches you need to end up with, and the number of rows or rounds over which you want to make these decreases. The calculator will then tell you how many stitches to decrease evenly across each row/round.
function calculateDecreases() {
var currentStitches = parseFloat(document.getElementById("currentStitches").value);
var targetStitches = parseFloat(document.getElementById("targetStitches").value);
var decreaseRows = parseFloat(document.getElementById("decreaseRows").value);
var resultDiv = document.getElementById("result");
resultDiv.innerHTML = ""; // Clear previous results
if (isNaN(currentStitches) || isNaN(targetStitches) || isNaN(decreaseRows)) {
resultDiv.innerHTML = "Please enter valid numbers for all fields.";
return;
}
if (currentStitches <= targetStitches) {
resultDiv.innerHTML = "Current stitches must be greater than target stitches.";
return;
}
if (decreaseRows <= 0) {
resultDiv.innerHTML = "Number of rows/rounds for decreases must be greater than zero.";
return;
}
var totalDecreasesNeeded = currentStitches – targetStitches;
var stitchesToDecreasePerRound = totalDecreasesNeeded / decreaseRows;
if (stitchesToDecreasePerRound 0) {
pattern += "On " + rowsWithMoreDecreases + " of these rows/rounds, decrease " + moreDecreaseCount + " stitches. ";
}
if (rowsWithFewerDecreases > 0) {
pattern += "On the remaining " + rowsWithFewerDecreases + " rows/rounds, decrease " + fewerDecreaseCount + " stitches.";
}
}
resultDiv.innerHTML = "You have
" + currentStitches + " stitches and want to reach
" + targetStitches + " stitches over
" + decreaseRows + " rows/rounds." +
"Total stitches to decrease:
" + totalDecreasesNeeded + "" +
"Estimated stitches to decrease per row/round:
" + stitchesToDecreasePerRound.toFixed(2) + "" +
"
Recommended pattern: " + pattern + "";
}
}
.knitting-decrease-calculator {
font-family: sans-serif;
border: 1px solid #ccc;
padding: 20px;
border-radius: 8px;
max-width: 500px;
margin: 20px auto;
background-color: #f9f9f9;
}
.knitting-decrease-calculator h2 {
text-align: center;
margin-bottom: 20px;
color: #333;
}
.knitting-decrease-calculator p {
line-height: 1.6;
color: #555;
}
.knitting-decrease-calculator .inputs {
display: flex;
flex-direction: column;
gap: 15px;
margin-bottom: 20px;
}
.knitting-decrease-calculator .form-group {
display: flex;
flex-direction: column;
}
.knitting-decrease-calculator label {
margin-bottom: 5px;
font-weight: bold;
color: #444;
}
.knitting-decrease-calculator input[type="number"] {
padding: 10px;
border: 1px solid #ddd;
border-radius: 4px;
font-size: 1em;
}
.knitting-decrease-calculator button {
padding: 12px 20px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
font-size: 1.1em;
transition: background-color 0.3s ease;
}
.knitting-decrease-calculator button:hover {
background-color: #0056b3;
}
.knitting-decrease-calculator .result {
margin-top: 20px;
padding: 15px;
border: 1px dashed #ccc;
border-radius: 4px;
background-color: #fff;
text-align: center;
}
.knitting-decrease-calculator .result p {
margin-bottom: 10px;
}
.knitting-decrease-calculator .result strong {
color: #0056b3;
}