diff --git a/include/cantera/kinetics/Kinetics.h b/include/cantera/kinetics/Kinetics.h
index e98c176eb..2b94f2345 100644
--- a/include/cantera/kinetics/Kinetics.h
+++ b/include/cantera/kinetics/Kinetics.h
@@ -636,7 +636,10 @@ public:
     /**
      * Return the forward rate constants
      *
-     * length is the number of reactions. units depends on many issues.
+     * The computed values include all temperature-dependent, pressure-dependent,
+     * and third body contributions. Length is the number of reactions. Units are
+     * a combination of kmol, m^3 and s, that depend on the rate expression for
+     * the reaction.
      *
      * @param kfwd    Output vector containing the forward reaction rate
      *                constants. Length: nReactions().
@@ -648,11 +651,13 @@ public:
     /**
      * Return the reverse rate constants.
      *
-     * length is the number of reactions. units depends on many issues. Note,
-     * this routine will return rate constants for irreversible reactions if
-     * the default for doIrreversible is overridden.
+     * The computed values include all temperature-dependent, pressure-dependent,
+     * and third body contributions. Length is the number of reactions. Units are
+     * a combination of kmol, m^3 and s, that depend on the rate expression for
+     * the reaction. Note, this routine will return rate constants for
+     * irreversible reactions if the default for `doIrreversible` is overridden.
      *
-     * @param krev   Output vector of reverse rate constants.
+     * @param krev   Output vector of reverse rate constants
      * @param doIrreversible boolean indicating whether irreversible reactions
      *                       should be included.
      */
diff --git a/interfaces/cython/cantera/kinetics.pyx b/interfaces/cython/cantera/kinetics.pyx
index c587d45ac..d457d0ec3 100644
--- a/interfaces/cython/cantera/kinetics.pyx
+++ b/interfaces/cython/cantera/kinetics.pyx
@@ -258,16 +258,20 @@ cdef class Kinetics(_SolutionBase):
 
     property forward_rate_constants:
         """
-        Forward rate constants for all reactions. Units are a combination of
-        kmol, m^3 and s, that depend on the rate expression for the reaction.
+        Forward rate constants for all reactions. The computed values include
+        all temperature-dependent, pressure-dependent, and third body
+        contributions. Units are a combination of kmol, m^3 and s, that depend
+        on the rate expression for the reaction.
         """
         def __get__(self):
             return get_reaction_array(self, kin_getFwdRateConstants)
 
     property reverse_rate_constants:
         """
-        Reverse rate constants for all reactions. Units are a combination of
-        kmol, m^3 and s, that depend on the rate expression for the reaction.
+        Reverse rate constants for all reactions. The computed values include
+        all temperature-dependent, pressure-dependent, and third body
+        contributions. Units are a combination of kmol, m^3 and s, that depend
+        on the rate expression for the reaction.
         """
         def __get__(self):
             return get_reaction_array(self, kin_getRevRateConstants)
diff --git a/interfaces/matlab/toolbox/@Kinetics/fwdRateConstants.m b/interfaces/matlab/toolbox/@Kinetics/fwdRateConstants.m
index f548d0162..82f215558 100644
--- a/interfaces/matlab/toolbox/@Kinetics/fwdRateConstants.m
+++ b/interfaces/matlab/toolbox/@Kinetics/fwdRateConstants.m
@@ -2,6 +2,10 @@ function kf = fwdRateConstants(a)
 % FWDRATECONSTANTS  Get the forward reaction rate constants.
 % kf = fwdRateConstants(a)
 %
+% The computed values include all temperature-dependent, pressure-dependent, and
+% third body contributions. Units are a combination of kmol, m^3 and s, that
+% depend on the rate expression for the reaction.
+%
 % see also: :mat:func:`revRateConstants`, :mat:func:`equil_Kc`
 %
 % :param a:
diff --git a/interfaces/matlab/toolbox/@Kinetics/revRateConstants.m b/interfaces/matlab/toolbox/@Kinetics/revRateConstants.m
index 5a1c5f5df..67c13b605 100644
--- a/interfaces/matlab/toolbox/@Kinetics/revRateConstants.m
+++ b/interfaces/matlab/toolbox/@Kinetics/revRateConstants.m
@@ -2,6 +2,10 @@ function kr = revRateConstants(a)
 % REVRATECONSTANTS  Get the reverse reaction rate constants.
 % kr = revRateConstants(a)
 %
+% The computed values include all temperature-dependent, pressure-dependent, and
+% third body contributions. Units are a combination of kmol, m^3 and s, that
+% depend on the rate expression for the reaction.
+%
 % See also: :mat:func:`fwdRateConstants`, :mat:func:`equil_KC`
 %
 % :param a: