diff --git a/R/calibration.R b/R/calibration.R
index 071bd87..a117a01 100644
--- a/R/calibration.R
+++ b/R/calibration.R
@@ -1,7 +1,8 @@
 #' Temperature calibration
 #'
 #' A clumped isotope temperature calibration of the form:
-#' \deqn{y = a \times 10^6 / T^2 + b}{y = a * 10^6 / T^2 + b}
+#' \deqn{y = a \times 10^6 / T^2 + b}{y = a * 10^6 / T^2 + b},
+#' where T is in Kelvin.
 #'
 #' Defaults to Bonifacie et al. 2017
 #' \deqn{\Delta_47 = (0.0449 \pm 0.001 \times 10^6) / T^2 + (0.167 \pm 0.01)}
@@ -54,11 +55,11 @@ tempcal <- function(Tc,
 
 #' Reverse temperature calibration
 #'
-#' A clumped isotope temperature calibration in reversed form, where the normal
+#' A clumped isotope temperature calibration in reversed form, where the
 #' calibration
-#' \deqn{y = a \times 10^6 / T_K^2 + b}{y = a * 10^6 / T_K^2 + b}
-#' is expressed as a function of \eqn{T_C}:
-#' \deqn{T_C = sqrt((a \times 10^6) / (y - b)) - 273.15}
+#' \deqn{y = a \times 10^6 / T^2 + b}{y = a * 10^6 / T^2 + b} with \eqn{T} in Kelvin,
+#' is expressed as a function of \eqn{T_C} (in degrees Celsius):
+#' \deqn{T_C = \sqrt((a \times 10^6) / (y - b)) - 273.15}{T[C] = sqrt((a * 10^6) / (y - b)) - 273.15}
 #'
 #' Defaults to Bonifacie et al. 2017 \deqn{\Delta_47 = (0.0449 \pm 0.001 \times
 #' 10^6) / T^2 + (0.167 \pm 0.01)}
diff --git a/man/revcal.Rd b/man/revcal.Rd
index fda8af5..fe32e72 100644
--- a/man/revcal.Rd
+++ b/man/revcal.Rd
@@ -32,11 +32,11 @@ A tibble with input \eqn{\Delta_{47}} and estimated Tc value
 with lower and upper bounds.
 }
 \description{
-A clumped isotope temperature calibration in reversed form, where the normal
+A clumped isotope temperature calibration in reversed form, where the
 calibration
-\deqn{y = a \times 10^6 / T_K^2 + b}{y = a * 10^6 / T_K^2 + b}
-is expressed as a function of \eqn{T_C}:
-\deqn{T_C = sqrt((a \times 10^6) / (y - b)) - 273.15}
+\deqn{y = a \times 10^6 / T^2 + b}{y = a * 10^6 / T^2 + b} with \eqn{T} in Kelvin,
+is expressed as a function of \eqn{T_C} (in degrees Celsius):
+\deqn{T_C = \sqrt((a \times 10^6) / (y - b)) - 273.15}{T[C] = sqrt((a * 10^6) / (y - b)) - 273.15}
 }
 \details{
 Defaults to Bonifacie et al. 2017 \deqn{\Delta_47 = (0.0449 \pm 0.001 \times
diff --git a/man/tempcal.Rd b/man/tempcal.Rd
index ff45264..2f73e3f 100644
--- a/man/tempcal.Rd
+++ b/man/tempcal.Rd
@@ -33,7 +33,8 @@ A \link[tibble:tibble-package]{tibble} with input Tc and estimated
 }
 \description{
 A clumped isotope temperature calibration of the form:
-\deqn{y = a \times 10^6 / T^2 + b}{y = a * 10^6 / T^2 + b}
+\deqn{y = a \times 10^6 / T^2 + b}{y = a * 10^6 / T^2 + b},
+where T is in Kelvin.
 }
 \details{
 Defaults to Bonifacie et al. 2017