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Free running calculators for pace, races, training volume, performance, track, treadmill, cadence, hills, energy, fueling, conditions, weather, and fun tools. No signup. Exact math where it is exact; published models where it is an estimate.
Hey Product Hunt 👋
I built **RunnersLab** because I kept needing simple running calculations without digging through cluttered websites, spreadsheets, or apps.
It started as a small pace calculator and slowly turned into a collection of **100+ free tools for runners** — pace calculators, race predictors, training pace tools, heart-rate calculators, pace charts, treadmill conversions, and even a few deliberately ridiculous ones like *Could you outrun a zombie?* 🧟
The idea is simple: **useful running tools, fast, free, and without creating an account.**
I’m still actively improving it, so I’d genuinely love to hear what you think — especially which tools you find useful, what feels confusing, or what you think RunnersLab is still missing.
Thanks for checking it out! 🏃
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About Runners Lab on Product Hunt
“Every calculation a runner needs.”
Runners Lab was submitted on Product Hunt and earned 2 upvotes and 1 comments, placing #149 on the daily leaderboard. Free running calculators for pace, races, training volume, performance, track, treadmill, cadence, hills, energy, fueling, conditions, weather, and fun tools. No signup. Exact math where it is exact; published models where it is an estimate.
Runners Lab was featured in Health & Fitness (83.2k followers), Sports (11.4k followers) and Running (609 followers) on Product Hunt. Together, these topics include over 36.7k products, making this a competitive space to launch in.
Who hunted Runners Lab?
Runners Lab was hunted by Jan Kosara. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
Want to see how Runners Lab stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Jan Kosara