diff --git a/src/parser.rs b/src/parser.rs
index 63880c6..2ea8f4a 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -95,6 +95,7 @@ fn parse_suffix(input: &str) -> IResult<&str, (Format, Scale)> {
         tag("Ti"),
         tag("Pi"),
         tag("Ei"),
+        tag("n"),
         tag("m"),
         tag("k"),
         tag("M"),
@@ -115,6 +116,7 @@ fn parse_suffix(input: &str) -> IResult<&str, (Format, Scale)> {
             "Ei" => (Format::BinarySI, Scale::Exa),
             //
             "m" => (Format::DecimalSI, Scale::Milli),
+            "n" => (Format::DecimalSI, Scale::Nano),
             "" => (Format::DecimalSI, Scale::One),
             "k" => (Format::DecimalSI, Scale::Kilo),
             "M" => (Format::DecimalSI, Scale::Mega),
diff --git a/src/scale.rs b/src/scale.rs
index f350b0c..34c9dd7 100644
--- a/src/scale.rs
+++ b/src/scale.rs
@@ -2,6 +2,7 @@
 /// scales are omitted for mathematical simplicity.
 #[derive(PartialEq, Eq, PartialOrd, Ord, Debug, Clone, Default)]
 pub(crate) enum Scale {
+    Nano,
     Milli,
     #[default]
     One,
@@ -25,6 +26,7 @@ impl From<&Scale> for i32 {
     fn from(value: &Scale) -> Self {
         // https://en.wikipedia.org/wiki/Kilobyte
         match value {
+            Scale::Nano => -3,
             Scale::Milli => -1,
             Scale::One => 0,
             Scale::Kilo => 1,
@@ -42,6 +44,7 @@ impl TryFrom<i32> for Scale {
 
     fn try_from(value: i32) -> Result<Self, Self::Error> {
         match value {
+            -3 => Ok(Scale::Nano),
             -1 => Ok(Scale::Milli),
             0 => Ok(Scale::One),
             1 => Ok(Scale::Kilo),
diff --git a/src/utils.rs b/src/utils.rs
index 2dd4b7d..c1e778d 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -4,6 +4,7 @@ use crate::{format::Format, scale::Scale};
 pub(crate) fn scale_format_to_string(scale: &Scale, format: &Format) -> String {
     match format {
         Format::BinarySI => match scale {
+            Scale::Nano => "n".to_owned(),
             Scale::Milli => "".to_owned(),
             Scale::One => "".to_owned(),
             Scale::Kilo => "Ki".to_owned(),
@@ -14,6 +15,7 @@ pub(crate) fn scale_format_to_string(scale: &Scale, format: &Format) -> String {
             Scale::Exa => "Ei".to_owned(),
         },
         Format::DecimalSI => match scale {
+            Scale::Nano => "n".to_owned(),
             Scale::Milli => "m".to_owned(),
             Scale::One => "".to_owned(),
             Scale::Kilo => "k".to_owned(),