Launched this week

Runneras - Running Calculator
Calculate pace, splits, and training zones for runners
2 followers
Calculate pace, splits, and training zones for runners
2 followers
Runneras is a clean, offline-first running calculator built for runners who want clarity and not clutter. Calculate pace, time, or distance instantly, view per-km/mile splits, predict race times, and find your ideal training zones. Runneras also adjusts for heat, elevation, and heart rate so you can plan smarter runs and race strategies. No ads. No subscriptions. Just fast, accurate running math.






👋 Hey Product Hunt!
I’m the maker of Runneras 🏃
A while ago, I decided to run a marathon despite the fact that I couldn’t run more than 500 meters without stopping. No background, no experience, just a big goal.
I’m very stats-driven and goal-oriented, so during that year I relied heavily on apps, spreadsheets, calculators, and even ChatGPT to plan pace, splits, training zones, race predictions, and adjustments for heat and elevation. Most of the time I had to jump between 2–3 different tools just to answer simple questions.
That’s when I realized: this should be one simple app.
Runneras combines everything I personally used while training. Pace calculations, splits, race predictions, training paces, heart-rate zones, and condition adjustments all in one fast, offline-first app.
The app is completely free, and these features will never be locked behind a paywall. I built Runneras because I genuinely want to help others train smarter and feel more confident about their running goals.
And yes I did complete the Athens Authentic Marathon 🏛️
Even though I was extremely slow (6 hours and 12 minutes), I crossed the finish line and that mattered more than the time.
I’d love to hear from you on what i could improve and what would you like to see in the app and if there is a demand for an apple version of the app i can do something about it😉
Thanks for checking out Runneras 🙌