diff --git a/index.html b/index.html
index f009c11..b956332 100644
--- a/index.html
+++ b/index.html
@@ -712,7 +712,12 @@
             console.log('Inscription address: ', inscriptionAddress );
             console.log('Tapkey:', tapkey);
 
-            let txsize = 1000 + Math.floor(data.length / 4);
+            let txsize = 600 + Math.floor(data.length / 4);
+
+            if(files[i].sha256 == '')
+            {
+                txsize = 300 + Math.floor(files[i].hex.length / 2);
+            }
 
             let fee = feerate * txsize;
             total_fee += fee;
diff --git a/signet-bootstrap.html b/signet-bootstrap.html
index 9934552..d27b1eb 100644
--- a/signet-bootstrap.html
+++ b/signet-bootstrap.html
@@ -712,7 +712,12 @@
                     console.log('Inscription address: ', inscriptionAddress );
                     console.log('Tapkey:', tapkey);
 
-                    let txsize = 1000 + Math.floor(data.length / 4);
+                    let txsize = 600 + Math.floor(data.length / 4);
+
+                    if(files[i].sha256 == '')
+                    {
+                        txsize = 300 + Math.floor(files[i].hex.length / 2);
+                    }
 
                     let fee = feerate * txsize;
                     total_fee += fee;
diff --git a/signet.html b/signet.html
index 135f0f6..3a66890 100644
--- a/signet.html
+++ b/signet.html
@@ -739,7 +739,14 @@
             console.log('Inscription address: ', inscriptionAddress);
             console.log('Tapkey:', tapkey);
 
-            let txsize = 1000 + Math.floor(data.length / 4);
+            let txsize = 600 + Math.floor(data.length / 4);
+
+            if(files[i].sha256 == '')
+            {
+                txsize = 300 + Math.floor(files[i].hex.length / 2);
+            }
+
+            console.log("TXSIZE", txsize);
 
             let fee = feerate * txsize;
             total_fee += fee;