diff --git a/crates/owlry-core/src/config/mod.rs b/crates/owlry-core/src/config/mod.rs
index f611e41..3581e87 100644
--- a/crates/owlry-core/src/config/mod.rs
+++ b/crates/owlry-core/src/config/mod.rs
@@ -162,6 +162,9 @@ pub struct ProvidersConfig {
     /// Enable calculator provider (= expression or calc expression)
     #[serde(default = "default_true")]
     pub calculator: bool,
+    /// Enable converter provider (> expression or auto-detect)
+    #[serde(default = "default_true")]
+    pub converter: bool,
     /// Enable frecency-based result ranking
     #[serde(default = "default_true")]
     pub frecency: bool,
@@ -239,6 +242,7 @@ impl Default for ProvidersConfig {
             commands: true,
             uuctl: true,
             calculator: true,
+            converter: true,
             frecency: true,
             frecency_weight: 0.3,
             websearch: true,
diff --git a/crates/owlry-core/src/providers/mod.rs b/crates/owlry-core/src/providers/mod.rs
index c9ef27c..5b3a3c6 100644
--- a/crates/owlry-core/src/providers/mod.rs
+++ b/crates/owlry-core/src/providers/mod.rs
@@ -295,7 +295,27 @@ impl ProviderManager {
             core_providers.push(provider);
         }
 
+        // Built-in dynamic providers
+        let mut builtin_dynamic: Vec<Box<dyn DynamicProvider>> = Vec::new();
+
+        if config.providers.calculator {
+            builtin_dynamic.push(Box::new(calculator::CalculatorProvider));
+            info!("Registered built-in calculator provider");
+        }
+
+        if config.providers.converter {
+            builtin_dynamic.push(Box::new(converter::ConverterProvider::new()));
+            info!("Registered built-in converter provider");
+        }
+
+        // Built-in static providers
+        if config.providers.system {
+            core_providers.push(Box::new(system::SystemProvider::new()));
+            info!("Registered built-in system provider");
+        }
+
         let mut manager = Self::new(core_providers, native_providers);
+        manager.builtin_dynamic = builtin_dynamic;
         manager.runtimes = runtimes;
         manager.runtime_type_ids = runtime_type_ids;
         manager