diff --git a/bdk-ffi/src/bdk.udl b/bdk-ffi/src/bdk.udl
index 4f60001d..d8e37e38 100644
--- a/bdk-ffi/src/bdk.udl
+++ b/bdk-ffi/src/bdk.udl
@@ -1104,6 +1104,10 @@ interface ElectrumClient {
   /// Returns the capabilities of the server.
   [Throws=ElectrumError]
   ServerFeaturesRes server_features();
+
+  /// Estimates the fee required in bitcoin per kilobyte to confirm a transaction in `number` blocks.
+  [Throws=ElectrumError]
+  f64 estimate_fee(u64 number);
 };
 
 /// Response to an ElectrumClient.server_features request.
diff --git a/bdk-ffi/src/electrum.rs b/bdk-ffi/src/electrum.rs
index 40932044..86b53e95 100644
--- a/bdk-ffi/src/electrum.rs
+++ b/bdk-ffi/src/electrum.rs
@@ -104,6 +104,13 @@ impl ElectrumClient {
             .map_err(ElectrumError::from)
             .map(ServerFeaturesRes::from)
     }
+
+    pub fn estimate_fee(&self, number: u64) -> Result<f64, ElectrumError> {
+        self.0
+            .inner
+            .estimate_fee(number as usize)
+            .map_err(ElectrumError::from)
+    }
 }
 
 pub struct ServerFeaturesRes {