Convert Any Cardio. Instantly.

When your workout calls for a 400m run but you only have a rower, CardioConversion tells you exactly how many meters to row for equal effort.

Cardio Conversion
400m800m1600m5000m
Outdoor Run400m
Row Erg500m
Assault Bike1200m

Everything You Need.
Nothing You Don't.

Designed for fast-paced gym environments where every second counts.

⚡️

Instant Conversions

No submit buttons. Just drag any slider, and every other piece of equipment updates instantly.

🏋️

3 Core Machines

Outdoor Run, Row Erg, and Assault Bike included free. Upgrade for more equipment.

🌙

Dark Mode

Sleek, battery-saving dark interface perfect for low-light gym settings.

📱

Works Offline

No internet required. Convert anywhere—even in your basement gym.

Unlock Your Full Potential

Upgrade once, keep it forever. Get the ultimate tool for programming and training.

  • Custom Ratios
  • Assault Bike & Air Squats
  • Burpees & Box Jumps
  • Double Unders & Wall Balls
  • Ad-Free Experience
  • One-time Purchase
$4.99
Lifetime Access
Upgrade Now

Trusted by Athletes*

*These people are totally real and definitely not made up

"Finally an app that does one thing perfectly. I use it for every scaling option in my classes. The custom ratios are a game changer for beginners."

🏋️
Coach Mike
Definitely a Real Person

"I travel a lot and hotel gyms never have the same equipment. This app saves my programming every single week. Worth every penny."

🏃‍♀️
Sarah T.
Not a Stock Photo

"My garage only has a rower and bike. Now I can follow any workout without doing math in my head mid-WOD."

💪
James R.
Exists in This Dimension