Your Liftosaur Workouts,
on Your Garmin Watch

liftosaur2garmin syncs your completed Liftosaur workouts to Garmin Connect. Your exercises appear on the Garmin muscle map, your heart rate data drives accurate calorie counts, and every set, rep, and weight shows up in the activity description.

Get Started How It Works
Upper Body Push Day Today, 08:30 • Strength Training
L2G logo
45:12
TIME
142 bpm
AVG HR
480 kcal
CALORIES
Targeted Muscles
Chest, Triceps, Anterior Delt
FIT Mapped Garmin Ready
Bench Press: 3x5 @ 80kg Overhead Press: 3x8 @ 50kg Triceps Pushdowns: 3x12 @ 25kg Warmup sets included.

Designed for strength athletes

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Targeted Muscle Map

Your Garmin watch shows which muscles you worked, but only when exercises use the correct FIT category IDs. liftosaur2garmin automatically maps your Liftosaur exercises to Garmin's proprietary database. Your bench press lights up your chest, and your deadlifts target your posterior chain. No more generic, empty "Strength" entries in Garmin Connect.

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Heart-Rate-Based Calories

liftosaur2garmin aligns your daily high-resolution heart rate data with your workout window, applying the Keytel metabolic formula to compute calories using your exact age, weight, and gender.

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Your Workout Names, on Garmin

A synced activity shows up as "Strength Training" by default. liftosaur2garmin automatically renames it to match your Liftosaur routine: "Upper Body Push," "5/3/1 Squat Week 2," or whatever you named it.

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Full Workout in the Description

Every single exercise, set, rep, and weight you logged in Liftosaur gets formatted and written directly into the Garmin activity description. See warmup markers, working sets, and total volume at a glance inside the Garmin Connect mobile app or web dashboard.

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Runs Completely in the Background

Configure your credentials once. The background daemon syncs new Liftosaur workouts on a recurring cron schedule, or you can trigger an instant sync from your dashboard.

Three steps

Connect API Keys

Input your Liftosaur API token and Garmin Connect credentials. They are encrypted locally on your server.

Log Your Workouts

Log strength training in the Liftosaur app as usual. Our background daemon automatically detects new workouts.

View Synced Data

Open Garmin Connect on your phone or browser to see full set breakdowns, color-coded muscle diagrams, and heart rate data.

Common questions

Do I need a Liftosaur premium subscription?
Yes. Liftosaur's API requires a premium subscription to generate an API key (available in Liftosaur → Settings → API Keys).
What if an exercise is not mapped correctly?
You can configure custom mappings for any exercise directly in the Mappings tab of your liftosaur2garmin dashboard. 550+ exercises are mapped out-of-the-box.
Does this work with the Garmin Connect mobile app?
Yes. FIT files are uploaded directly to the Garmin Cloud, meaning they immediately show up on Garmin Connect mobile (iOS and Android), web, and sync to your smartwatch history.
Can I sync historical workouts?
Yes. The sync service retrieves up to 100 of your most recent workouts from Liftosaur. It tracks already-uploaded workouts to prevent duplicates.
Where are my Garmin credentials stored?
Your credentials stay entirely on your local machine running liftosaur2garmin. For security, credentials are encrypted at rest with a custom key you configure during setup.