diff --git a/CHANGELOG.md b/CHANGELOG.md
index 51483dea..77b7ce2c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -51,6 +51,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - [#450](https://github.com/ClementTsang/bottom/pull/450): Tweak `default-light` colour scheme to look less terrible on white terminals.
 
+- [#451](https://github.com/ClementTsang/bottom/pull/451): Add decimal place to disk values larger than 1GB for total read/write in process widgets, and read/write per second in process widgets and disk widgets.
+
 ## Bug Fixes
 
 - [#416](https://github.com/ClementTsang/bottom/pull/416): Fixes grouped vs ungrouped modes in the processes widget having inconsistent spacing.
diff --git a/src/app/data_farmer.rs b/src/app/data_farmer.rs
index 4a2f470e..c58e4f1b 100644
--- a/src/app/data_farmer.rs
+++ b/src/app/data_farmer.rs
@@ -19,7 +19,7 @@ use std::{time::Instant, vec::Vec};
 use crate::app::data_harvester::load_avg::LoadAvgHarvest;
 use crate::{
     data_harvester::{batteries, cpu, disks, load_avg, mem, network, processes, temperature, Data},
-    utils::gen_util::get_decimal_bytes,
+    utils::gen_util::{get_decimal_bytes, GIGA_LIMIT},
 };
 use regex::Regex;
 
@@ -296,8 +296,16 @@ impl DataCollection {
                             let converted_read = get_decimal_bytes(r_rate);
                             let converted_write = get_decimal_bytes(w_rate);
                             *io_labels = (
-                                format!("{:.*}{}/s", 0, converted_read.0, converted_read.1),
-                                format!("{:.*}{}/s", 0, converted_write.0, converted_write.1),
+                                if r_rate >= GIGA_LIMIT {
+                                    format!("{:.*}{}/s", 1, converted_read.0, converted_read.1)
+                                } else {
+                                    format!("{:.*}{}/s", 0, converted_read.0, converted_read.1)
+                                },
+                                if w_rate >= GIGA_LIMIT {
+                                    format!("{:.*}{}/s", 1, converted_write.0, converted_write.1)
+                                } else {
+                                    format!("{:.*}{}/s", 0, converted_write.0, converted_write.1)
+                                },
                             );
                         }
                     }
diff --git a/src/data_conversion.rs b/src/data_conversion.rs
index 185aa811..c0f8529e 100644
--- a/src/data_conversion.rs
+++ b/src/data_conversion.rs
@@ -586,13 +586,32 @@ fn get_disk_io_strings(
     let converted_total_write = get_decimal_bytes(total_write);
 
     (
-        format!("{:.*}{}/s", 0, converted_rps.0, converted_rps.1),
-        format!("{:.*}{}/s", 0, converted_wps.0, converted_wps.1),
-        format!("{:.*}{}", 0, converted_total_read.0, converted_total_read.1),
-        format!(
-            "{:.*}{}",
-            0, converted_total_write.0, converted_total_write.1
-        ),
+        if rps >= GIGA_LIMIT {
+            format!("{:.*}{}/s", 1, converted_rps.0, converted_rps.1)
+        } else {
+            format!("{:.*}{}/s", 0, converted_rps.0, converted_rps.1)
+        },
+        if wps >= GIGA_LIMIT {
+            format!("{:.*}{}/s", 1, converted_wps.0, converted_wps.1)
+        } else {
+            format!("{:.*}{}/s", 0, converted_wps.0, converted_wps.1)
+        },
+        if total_read >= GIGA_LIMIT {
+            format!("{:.*}{}", 1, converted_total_read.0, converted_total_read.1)
+        } else {
+            format!("{:.*}{}", 0, converted_total_read.0, converted_total_read.1)
+        },
+        if total_write >= GIGA_LIMIT {
+            format!(
+                "{:.*}{}",
+                1, converted_total_write.0, converted_total_write.1
+            )
+        } else {
+            format!(
+                "{:.*}{}",
+                0, converted_total_write.0, converted_total_write.1
+            )
+        },
     )
 }