diff --git a/FilterReview/FilterReview.js b/FilterReview/FilterReview.js
index 9f0bdea5..231dadd0 100644
--- a/FilterReview/FilterReview.js
+++ b/FilterReview/FilterReview.js
@@ -293,8 +293,16 @@ function run_batch_fft(data_set) {
     const sample_time = sample_rate_count / sample_rate_sum
 
 
-    // Hard code 50% overlap
-    const window_overlap = 0.5
+    // Overlap between windows, batch logs always use 50% so that the window size is a power of two for the windows per batch selections
+    let window_overlap = 0.5
+    if (Gyro_batch.type != "batch") {
+        const overlap_percent = parseFloat(document.getElementById("FFTWindow_overlap").value)
+        if (!(overlap_percent >= 0) || !(overlap_percent <= 90)) {
+            alert('Overlap must be between 0 and 90%')
+            throw new Error()
+        }
+        window_overlap = overlap_percent * 0.01
+    }
 
     var window_size
     if (Gyro_batch.type == "batch") {
@@ -369,6 +377,7 @@ function reset() {
 
     document.getElementById("FFTWindow_per_batch").disabled = true
     document.getElementById("FFTWindow_size").disabled = true
+    document.getElementById("FFTWindow_overlap").disabled = true
     document.getElementById("TimeStart").disabled = true
     document.getElementById("TimeEnd").disabled = true
 
@@ -2425,6 +2434,7 @@ async function load(log_file) {
     document.getElementById("log_type_raw").disabled = true
 
     document.getElementById("FFTWindow_size").disabled = use_batch
+    document.getElementById("FFTWindow_overlap").disabled = use_batch
     document.getElementById("FFTWindow_per_batch").disabled = !use_batch
 
 
diff --git a/FilterReview/index.html b/FilterReview/index.html
index caec117a..2c93f307 100644
--- a/FilterReview/index.html
+++ b/FilterReview/index.html
@@ -93,19 +93,22 @@ <h1 style="text-align:center; margin-block-end: 0.25em;"><a href="" style="color
                                             <ul>
                                             <li>Increasing window size increases frequency resolution and decreases temporal resolution. This is useful when looking at low frequencies, but due to the decreased temporal resolution longer hover flights are needed.</li>
                                             <li>Decreasing window size reduces frequency resolution and increases temporal resolution. This is useful when using the IMU Spectrogram to review notch tracking in dynamic flight.</li>
-                                            </ul>'
+                                            </ul>
+                                            With raw sensor logging the overlap between windows can also be changed. More overlap gives more windows to average, smoothing the spectrum and giving a finer time step in the IMU Spectrogram, at the cost of calculation time. Batch logging always uses 50%.'
                         data-tippy-maxWidth='750px'/>
                     </legend>
-                    <table>
+                    <table style="border-spacing: 0 2px">
                         <tr>
-                            <td style="width: 125px;">
-                                <label for="FFTWindow_per_batch">Windows per batch</label><br><br>
-                                <label for="FFTWindow_size">Windows size</label>
-                            </td>
-                            <td>
-                                <input id="FFTWindow_per_batch" name="FFTWindow_per_batch" type="number" min="1" step="1" value="1" onchange="clear_calculation()" style="width:50px"/><br><br>
-                                <input id="FFTWindow_size" name="FFTWindow_size" type="number" min="1" step="1" value="1024" onchange="fft_window_size_inc(event); clear_calculation()" style="width:50px"/>
-                            </td>
+                            <td style="width: 125px;"><label for="FFTWindow_per_batch">Windows per batch</label></td>
+                            <td><input id="FFTWindow_per_batch" name="FFTWindow_per_batch" type="number" min="1" step="1" value="1" onchange="clear_calculation()" style="width:50px"/></td>
+                        </tr>
+                        <tr>
+                            <td><label for="FFTWindow_size">Windows size</label></td>
+                            <td><input id="FFTWindow_size" name="FFTWindow_size" type="number" min="1" step="1" value="1024" onchange="fft_window_size_inc(event); clear_calculation()" style="width:50px"/></td>
+                        </tr>
+                        <tr>
+                            <td><label for="FFTWindow_overlap">Overlap (%)</label></td>
+                            <td><input id="FFTWindow_overlap" name="FFTWindow_overlap" type="number" min="0" max="90" step="5" value="50" onchange="clear_calculation()" style="width:50px"/></td>
                         </tr>
                     </table>
                 </fieldset>