diff --git a/CHANGES b/CHANGES
index 53fd5d218..806897330 100644
--- a/CHANGES
+++ b/CHANGES
@@ -9,6 +9,7 @@ Pint Changelog
 - Fix return type of `PlainQuantity.to` (#2088)
 - Update constants to CODATA 2022 recommended values. (#2049)
 - Fixed issue with `.to_compact` and Magnitudes with uncertainties / Quantities with units (PR #2069, issue #2044)
+- Add conductivity dimension. (#2112)
 
 
 0.24.4 (2024-11-07)
diff --git a/pint/default_en.txt b/pint/default_en.txt
index bbac09bed..87dc60ec5 100644
--- a/pint/default_en.txt
+++ b/pint/default_en.txt
@@ -448,6 +448,9 @@ conventional_ohm_90 = R_K / R_K90 * ohm = Ω_90 = ohm_90
 siemens = ampere / volt = S = mho
 absiemens = 1e9 * siemens = abS = abmho
 
+# Conductivity
+[conductivity] = [conductance]/[length]
+
 # Capacitance
 [capacitance] = [charge] / [electric_potential]
 farad = coulomb / volt = F