diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5285ddf31..1653eec3b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,7 @@
     replacing `x.unitary_inverse()` with `let mut tmp = x.clone(); tmp.conjugate()`
 - #53 (ark-poly) Add `Zero` trait bound to `Polynomial`.
 - #106 (ark-ff, ark-ec) Add `Zeroize` trait bound to `Field, ProjectiveGroup, AffineGroup` traits.
+- #108 (ark-ff) Add `extension_degree()` method to `Field`.
 
 ### Features
 - #20 (ark-poly) Add structs/traits for multivariate polynomials
diff --git a/ff/src/fields/macros.rs b/ff/src/fields/macros.rs
index 31766a0f6..5eb633811 100644
--- a/ff/src/fields/macros.rs
+++ b/ff/src/fields/macros.rs
@@ -158,6 +158,10 @@ macro_rules! impl_Fp {
         impl<P: $FpParameters> Field for $Fp<P> {
             type BasePrimeField = Self;
 
+            fn extension_degree() -> u64 {
+                1
+            }
+
             #[inline]
             fn double(&self) -> Self {
                 let mut temp = *self;
diff --git a/ff/src/fields/mod.rs b/ff/src/fields/mod.rs
index 0a147e197..3fcfbf98a 100644
--- a/ff/src/fields/mod.rs
+++ b/ff/src/fields/mod.rs
@@ -115,6 +115,10 @@ pub trait Field:
         Self::BasePrimeField::characteristic()
     }
 
+    /// Returns the extension degree of this field with respect
+    /// to `Self::BasePrimeField`.
+    fn extension_degree() -> u64;
+
     /// Returns `self + self`.
     #[must_use]
     fn double(&self) -> Self;
diff --git a/ff/src/fields/models/cubic_extension.rs b/ff/src/fields/models/cubic_extension.rs
index c2a659a3b..3621d8784 100644
--- a/ff/src/fields/models/cubic_extension.rs
+++ b/ff/src/fields/models/cubic_extension.rs
@@ -140,6 +140,10 @@ impl<P: CubicExtParameters> One for CubicExtField<P> {
 impl<P: CubicExtParameters> Field for CubicExtField<P> {
     type BasePrimeField = P::BasePrimeField;
 
+    fn extension_degree() -> u64 {
+        3 * P::BaseField::extension_degree()
+    }
+
     fn double(&self) -> Self {
         let mut result = *self;
         result.double_in_place();
diff --git a/ff/src/fields/models/quadratic_extension.rs b/ff/src/fields/models/quadratic_extension.rs
index a193220fe..85b396c8d 100644
--- a/ff/src/fields/models/quadratic_extension.rs
+++ b/ff/src/fields/models/quadratic_extension.rs
@@ -164,6 +164,10 @@ impl<P: QuadExtParameters> One for QuadExtField<P> {
 impl<P: QuadExtParameters> Field for QuadExtField<P> {
     type BasePrimeField = P::BasePrimeField;
 
+    fn extension_degree() -> u64 {
+        2 * P::BaseField::extension_degree()
+    }
+
     fn double(&self) -> Self {
         let mut result = *self;
         result.double_in_place();