Hey hunters 👋 I built SpeedTo after a frustrating highway drive where I couldn't figure out why my EV range was tanking. Turns out: 65 km/h headwind = +22% energy loss. Nobody tells you that. SpeedTo is a real-time driving assistant that calculates the actual aerodynamic impact of wind on your consumption — live, while you drive. What it does: → Combines your GPS speed + live weather wind to compute your real air speed → Shows the % overconsumption (headwind) or savings (tailwind) in real time → Eco score 0–100 factoring wind, slope, speed and driving style → Works for ICE, hybrid and EV — calibrated models for each → Instant altitude/slope detection via GPS → Temperature impact on EV range included No install needed. Runs as a web app on any phone. On iPhone, a one-tap config profile adds it fullscreen to your home screen — no App Store, no account. Why it matters for EV drivers: Range anxiety is often just wind anxiety in disguise. A 70 km/h crosswind hitting you at 130 km/h highway speed creates an effective air speed of ~148 km/h against your car. SpeedTo makes that visible and quantified. Free. Open to use. Built solo. Would love your feedback 🙏 👉 https://speedto.net

SpeedTo Real-time wind & assistant

Know exactly how wind is hurting your range — live

Know exactly how wind is hurting your range — live