Runneras - Running Calculator – Calculate pace, splits, and training zones with condition adjustments

Summary: Runneras is an offline-first running calculator that computes pace, time, distance, splits, race predictions, and training zones. It adjusts calculations for heat, elevation, and heart rate to support smarter run planning without ads or subscriptions.

What it does

Runneras instantly calculates pace, time, or distance and provides per-kilometer or mile splits, race time predictions, and ideal training zones. It factors in environmental and physiological conditions like heat, elevation, and heart rate for accurate adjustments.

Who it's for

It is designed for runners seeking integrated, data-driven tools to plan training and race strategies in a single offline app.

Why it matters

Runneras consolidates multiple running calculations and condition adjustments into one tool, eliminating the need to switch between different apps or spreadsheets.