diff --git a/README.md b/README.md
index 2c3b5c1..a7270e7 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
  cogs made for our Royal butt.
 
 ## Our Cogs:
+- [FitnessCog](./fitnessCog)
 - [RecruitmentCog](./recruitmentCog/)
 - [ReginaldCog](./reginaldCog/)
 - [TrafficCog](./trafficCog)
diff --git a/fitnessCog/__init__.py b/fitnessCog/__init__.py
new file mode 100644
index 0000000..daa3854
--- /dev/null
+++ b/fitnessCog/__init__.py
@@ -0,0 +1,6 @@
+from redbot.core.bot import Red
+from .fitness import FitnessCog
+
+async def setup(bot: Red):
+    cog = FitnessCog(bot)
+    await bot.add_cog(cog)
\ No newline at end of file
diff --git a/fitnessCog/activities/climb.json b/fitnessCog/activities/climb.json
new file mode 100644
index 0000000..b806ffb
--- /dev/null
+++ b/fitnessCog/activities/climb.json
@@ -0,0 +1,48 @@
+{
+    "convertable": true,
+    "units": {
+        "meter": {
+            "factor": 1,
+            "aliases": [
+                "meter",
+                "meters",
+                "m",
+                "m."
+            ]
+        },
+        "kilometer": {
+            "factor": 1000,
+            "aliases": [
+                "kilometer",
+                "kilometers",
+                "km",
+                "km."
+            ]
+        },
+        "foot": {
+            "factor": 0.3048,
+            "aliases": [
+                "foot",
+                "feet",
+                "ft",
+                "ft."
+            ]
+        },
+        "mile": {
+            "factor": 1609.344,
+            "aliases": [
+                "mile",
+                "miles",
+                "mi",
+                "mi."
+            ]
+        },
+        "step": {
+            "factor": 0.18,
+            "aliases": [
+                "step",
+                "steps"
+            ]
+        }
+    }
+}
diff --git a/fitnessCog/activities/pushups.json b/fitnessCog/activities/pushups.json
new file mode 100644
index 0000000..e26c057
--- /dev/null
+++ b/fitnessCog/activities/pushups.json
@@ -0,0 +1,3 @@
+{
+  "convertable": false
+}
\ No newline at end of file
diff --git a/fitnessCog/activity_logger.py b/fitnessCog/activity_logger.py
new file mode 100644
index 0000000..f409dd7
--- /dev/null
+++ b/fitnessCog/activity_logger.py
@@ -0,0 +1,119 @@
+import json
+import csv
+import os
+
+
+def activity_log_path(activity: str) -> str:
+    """
+    Returns the path of the activity log file in .csv format
+    :param activity:
+    :return:
+    """
+    filename = os.path.join("activity_logs", f"{activity}.csv")
+    return filename
+
+
+def activity_units_path(activity: str) -> str:
+    """
+    Returns the path of the activity activities file in .json format
+    :param activity:
+    :return:
+    """
+    filename = os.path.join("activities", f"{activity}.json")
+    return filename
+
+
+def is_convertable(activity: str) -> bool:
+    """
+    Returns True if the activity has multiple units that needed to be converted.
+    i.e. distance may be sent in feet, but would require to be converted in meters.
+    :param activity:
+    :return:
+    """
+    filename = activity_units_path(activity)
+    raw_data = json.load(open(filename))
+    return raw_data.get("transformable")
+
+
+
+def create_activity_log_file(activity: str) -> None:
+    """
+    Creates the activity log file in .csv format
+    :param activity:
+    :return:
+    """
+    if not os.path.exists(activity_units_path(activity)):
+        raise ValueError(f"{activity} is not a valid activity")
+    if not os.path.exists("activity_logs"):
+        os.makedirs("activity_logs")
+    filename = activity_log_path(activity)
+    with open(filename, 'a') as f:
+        writer = csv.writer(f)
+        writer.writerow(["timestamp", "username", "value"])
+
+
+
+def convert_units(activity: str, value: int | float, unit: str) -> float:
+    """
+    Returns the value of activity in a factor of 1, i.e. converting feet to meters
+    :param activity:
+    :param value:
+    :param unit:
+    :return:
+    """
+    filename = activity_units_path(activity)
+    if not os.path.exists(filename):
+        raise ValueError(f"{activity} is not a valid activity")
+
+    # Consider None unit value as factor of 1
+    if unit is None:
+        return value
+
+    raw_data = json.load(open(filename))
+    units_data = raw_data.get("units")
+
+    for unit_name, data in units_data.items():
+        if unit in data["aliases"]:
+            return value * data["factor"]
+
+    raise ValueError(f"{unit} is not a valid unit")
+
+
+def log_activity(
+        timestamp: int,
+        username: str,
+        activity: str,
+        value: int | float,
+        unit: str | None
+) -> None:
+    """
+    Logs the activity in .csv file
+    :param timestamp:
+    :param username:
+    :param activity:
+    :param value:
+    :param unit:
+    :return:
+    """
+    if value <= 0 or not isinstance(value, int | float):
+        raise ValueError(f"{value} is not a valid value")
+    filename = activity_log_path(activity)
+    if not os.path.exists(filename):
+        create_activity_log_file(activity)
+    if is_convertable(activity):
+        converted_value = round(convert_units(activity, value, unit), 2)
+    else:
+        converted_value = round(value, 2)
+    with open(filename, 'a') as f:
+        writer = csv.writer(f)
+        writer.writerow([timestamp, username, converted_value])
+
+
+if __name__ == "__main__":
+    log_activity(
+        timestamp=0,
+        username="test",
+        activity="climb",
+        value=1,
+        unit="m"
+    )
diff --git a/fitnessCog/fitness.py b/fitnessCog/fitness.py
new file mode 100644
index 0000000..bce83a8
--- /dev/null
+++ b/fitnessCog/fitness.py
@@ -0,0 +1,78 @@
+import os
+import discord
+from redbot.core import Config, commands
+from activity_logger import log_activity, activity_log_path, activity_units_path
+
+
+
+class FitnessCog(commands.Cog):
+    def __init__(self, bot):
+        self.bot = bot
+        # Some hardcoded values, this probably should be changed with redbot config. IDK how to use it or what's in it.
+        default_threads = "1457402451530350727,1328363409648910356"
+        self.threads_id = list(map(int, os.getenv("THREADS_ID", default_threads).split(",")))
+        self.confirm_reactions = os.getenv("CONFIRMATION_REACTIONS", "🐈💨")
+
+    @commands.Cog.listener()
+    async def on_message(self, message):
+        if message.author.bot:
+            return
+        if message.channel.id not in self.threads_id:
+            return
+        if not message.content.startswith("!"):
+            return
+
+        # region Fitness commands
+        if message.content.startswith("!getunits"):
+            await self.get_units_file(message)
+            return
+        if message.content.startswith("!getlog"):
+            await self.get_log_file(message)
+            return
+        # Make sure this one is past every other ! commands
+        await self.fitness_activity_log(message)
+        return
+        # endregion Fitness commands
+
+    # region Fitness commands functions
+    @staticmethod
+    async def get_units_file(message: discord.Message):
+        try:
+            raw = message.content[1:].lower().strip().split(" ", 1)
+            filename = activity_units_path(raw[1])
+            await message.channel.send(file=discord.File(fp=filename))
+        except Exception as e:
+            await message.channel.send(str(e))
+
+    @staticmethod
+    async def get_log_file(message: discord.Message):
+        try:
+            raw = message.content[1:].lower().strip().split(" ", 1)
+            filename = activity_log_path(raw[1])
+            await message.channel.send(file=discord.File(fp=filename))
+        except Exception as e:
+            await message.channel.send(str(e))
+
+    async def log_fitness(self, message):
+        try:
+            raw = message.content[1:].lower().strip().split(" ", 2)
+
+            timestamp = int(message.created_at.timestamp())
+            username = message.author.name
+            activity = raw[0]
+            value = float(raw[1])
+            unit = raw[2] if len(raw) > 2 else "m"
+
+            log_activity(timestamp, username, activity, value, unit)
+
+            for r in self.confirm_reactions:
+                await message.add_reaction(r)
+
+        except Exception as e:
+            await message.reply(str(e))
+    # endregion Fitness commands functions
+
+
+def setup(bot):
+    bot.add_cog(FitnessCog(bot))
+