diff --git a/CHANGELOG.md b/CHANGELOG.md
index c0f3166..fe058ca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -73,6 +73,7 @@ Categories Used:
 - Apply clippy lints [\#273](https://github.com/ouch-org/ouch/pull/273) ([figsoda](https://github.com/figsoda))
 - Warn user if file extension is passed as file name [\#277](https://github.com/ouch-org/ouch/pull/277) ([marcospb19](https://github.com/marcospb19))
 - Check for errors when setting the last modified time [\#278](https://github.com/ouch-org/ouch/pull/278) ([marcospb19](https://github.com/marcospb19))
+- Use to the humansize crate for formatting human-readable file sizes [\#281](https://github.com/ouch-org/ouch/pull/281) ([figsoda](https://github.com/figsoda))
 
 ### Tweaks
 
diff --git a/Cargo.lock b/Cargo.lock
index a41d737..6be10b0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -328,6 +328,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "humansize"
+version = "2.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a866837516f34ad34fb221f3ee01fd0db75f2c2f6abeda2047dc6963fb04ad9a"
+dependencies = [
+ "libm",
+]
+
 [[package]]
 name = "ignore"
 version = "0.4.18"
@@ -420,6 +429,12 @@ version = "0.2.135"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "68783febc7782c6c5cb401fbda4de5a9898be1762314da0bb2c10ced61f18b0c"
 
+[[package]]
+name = "libm"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "292a948cd991e376cf75541fe5b97a1081d713c618b4f1b9500f8844e49eb565"
+
 [[package]]
 name = "libz-sys"
 version = "1.1.8"
@@ -530,6 +545,7 @@ dependencies = [
  "filetime",
  "flate2",
  "fs-err",
+ "humansize",
  "ignore",
  "indicatif",
  "infer",
diff --git a/Cargo.toml b/Cargo.toml
index 701d461..d6b216c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,6 +18,7 @@ bzip2 = "0.4.3"
 clap = { version = "4.0.13", features = ["derive", "env"] }
 flate2 = { version = "1.0.24", default-features = false }
 fs-err = "2.8.1"
+humansize = "2.1.0"
 libc = "0.2.135"
 linked-hash-map = "0.5.6"
 lzzzz = "1.0.3"
diff --git a/src/archive/tar.rs b/src/archive/tar.rs
index 85b41b7..a845e6d 100644
--- a/src/archive/tar.rs
+++ b/src/archive/tar.rs
@@ -9,12 +9,13 @@ use std::{
 };
 
 use fs_err as fs;
+use humansize::{format_size, DECIMAL};
 
 use crate::{
     error::FinalError,
     info,
     list::FileInArchive,
-    utils::{self, Bytes, FileVisibilityPolicy},
+    utils::{self, FileVisibilityPolicy},
 };
 
 /// Unpacks the archive given by `archive` into the folder given by `into`.
@@ -43,7 +44,8 @@ pub fn unpack_archive(
             @display_handle,
             inaccessible,
             "{:?} extracted. ({})",
-            utils::strip_cur_dir(&output_folder.join(file.path()?)), Bytes::new(file.size())
+            utils::strip_cur_dir(&output_folder.join(file.path()?)),
+            format_size(file.size(), DECIMAL),
         );
 
         files_unpacked.push(file_path);
diff --git a/src/archive/zip.rs b/src/archive/zip.rs
index fd0ecfb..fb0921d 100644
--- a/src/archive/zip.rs
+++ b/src/archive/zip.rs
@@ -13,6 +13,7 @@ use std::{
 
 use filetime::{set_file_mtime, FileTime};
 use fs_err as fs;
+use humansize::{format_size, DECIMAL};
 use zip::{self, read::ZipFile, DateTime, ZipArchive};
 
 use crate::{
@@ -20,7 +21,7 @@ use crate::{
     info,
     list::FileInArchive,
     utils::{
-        self, cd_into_same_dir_as, get_invalid_utf8_paths, pretty_format_list_of_paths, strip_cur_dir, to_utf, Bytes,
+        self, cd_into_same_dir_as, get_invalid_utf8_paths, pretty_format_list_of_paths, strip_cur_dir, to_utf,
         FileVisibilityPolicy,
     },
 };
@@ -73,7 +74,8 @@ where
                     @display_handle,
                     inaccessible,
                     "{:?} extracted. ({})",
-                    file_path.display(), Bytes::new(file.size())
+                    file_path.display(),
+                    format_size(file.size(), DECIMAL),
                 );
 
                 let mut output_file = fs::File::create(file_path)?;
diff --git a/src/utils/formatting.rs b/src/utils/formatting.rs
index e49a54c..57c9bcd 100644
--- a/src/utils/formatting.rs
+++ b/src/utils/formatting.rs
@@ -1,4 +1,4 @@
-use std::{borrow::Cow, cmp, path::Path};
+use std::{borrow::Cow, path::Path};
 
 use crate::CURRENT_DIRECTORY;
 
@@ -48,73 +48,3 @@ pub fn nice_directory_display(path: &Path) -> Cow<str> {
         to_utf(path)
     }
 }
-
-/// Struct useful to printing bytes as kB, MB, GB, etc.
-pub struct Bytes {
-    bytes: f64,
-}
-
-impl Bytes {
-    const UNIT_PREFIXES: [&'static str; 6] = ["", "k", "M", "G", "T", "P"];
-
-    /// Create a new Bytes.
-    pub fn new(bytes: u64) -> Self {
-        Self { bytes: bytes as f64 }
-    }
-}
-
-impl std::fmt::Display for Bytes {
-    fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
-        let num = self.bytes;
-        debug_assert!(num >= 0.0);
-        if num < 1_f64 {
-            return write!(f, "{} B", num);
-        }
-        let delimiter = 1000_f64;
-        let exponent = cmp::min((num.ln() / 6.90775).floor() as i32, 4);
-
-        write!(f, "{:.2} ", num / delimiter.powi(exponent))?;
-        write!(f, "{}B", Bytes::UNIT_PREFIXES[exponent as usize])
-    }
-}
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_pretty_bytes_formatting() {
-        fn format_bytes(bytes: u64) -> String {
-            format!("{}", Bytes::new(bytes))
-        }
-        let b = 1;
-        let kb = b * 1000;
-        let mb = kb * 1000;
-        let gb = mb * 1000;
-
-        assert_eq!("0 B", format_bytes(0)); // This is weird
-        assert_eq!("1.00 B", format_bytes(b));
-        assert_eq!("999.00 B", format_bytes(b * 999));
-        assert_eq!("12.00 MB", format_bytes(mb * 12));
-        assert_eq!("123.00 MB", format_bytes(mb * 123));
-        assert_eq!("5.50 MB", format_bytes(mb * 5 + kb * 500));
-        assert_eq!("7.54 GB", format_bytes(gb * 7 + 540 * mb));
-        assert_eq!("1.20 TB", format_bytes(gb * 1200));
-
-        // bytes
-        assert_eq!("234.00 B", format_bytes(234));
-        assert_eq!("999.00 B", format_bytes(999));
-        // kilobytes
-        assert_eq!("2.23 kB", format_bytes(2234));
-        assert_eq!("62.50 kB", format_bytes(62500));
-        assert_eq!("329.99 kB", format_bytes(329990));
-        // megabytes
-        assert_eq!("2.75 MB", format_bytes(2750000));
-        assert_eq!("55.00 MB", format_bytes(55000000));
-        assert_eq!("987.65 MB", format_bytes(987654321));
-        // gigabytes
-        assert_eq!("5.28 GB", format_bytes(5280000000));
-        assert_eq!("95.20 GB", format_bytes(95200000000));
-        assert_eq!("302.00 GB", format_bytes(302000000000));
-    }
-}
diff --git a/src/utils/mod.rs b/src/utils/mod.rs
index 2df3936..05e325c 100644
--- a/src/utils/mod.rs
+++ b/src/utils/mod.rs
@@ -10,7 +10,7 @@ mod fs;
 mod question;
 
 pub use file_visibility::FileVisibilityPolicy;
-pub use formatting::{nice_directory_display, pretty_format_list_of_paths, strip_cur_dir, to_utf, Bytes};
+pub use formatting::{nice_directory_display, pretty_format_list_of_paths, strip_cur_dir, to_utf};
 pub use fs::{
     cd_into_same_dir_as, clear_path, create_dir_if_non_existent, dir_is_empty, is_symlink, try_infer_extension,
 };