Stridemate: Pace Calculator

Stridemate is a fast, offline running pace calculator for training and race day. Plan effort from one run to a full training cycle: - Convert between pace, time, and distance instantly - Pin one metric (pace, time, or distance) and recalculate the others - Switch or convert pace units: /km, /mi, /400m - Switch or convert distance units: kilometers and miles - Predict race performances from 400m to 100mi Go deeper with pacing tools: - Splits table and chart with 400m, 800m, 1km, 1mi, 5km, and 10km options - Splits Planner with strategy profiles: Progressive, Late Kick, and Step - Half-delta and transition-point controls for pacing strategy - Per-lap effort tags and rolling split analysis - Pace Chart modal to test nearby pace/time scenarios quickly - Heat adjustment using temperature and dew point, including reverse mode Train smarter: - Training pace guidance for road and track sessions - LTHR guidance with threshold pace and heart-rate zones - Blocks planner for 5K+ races with phase-based weekly structure - Distance Estimator to build block/step interval workouts and estimate total distance and duration - Save, load, delete, and copy workout presets Customize your setup: - Manage race distances: add custom distances, reorder, hide/show, and reset - Theme options: light, dark, or system - Accent presets for personal preference Privacy-first by design: - Works offline after install - No account required - No ads - No tracking or analytics - Data remains on your device Built by a runner for runners.