12-Lead ECG Simulator

Synthetic — for training only, not for diagnosis. 25 mm/s · 10 mm/mV Lessons Beat anatomy Quiz →

Vent. rate 62 bpm PR interval 200 ms QRS dur 88 ms QT/QTc 416/423 ms P-QRS-T axes 87 63 69 SYNTHETIC 12-LEAD ECG for training only — not for diagnosis I aVR V1 V4 II aVL V2 V5 III aVF V3 V6 II · rhythm strip (10 s) 25 mm/s · 10 mm/mV · 0.05–150 Hz · ~50/60 Hz · 10 s

Tip: click any beat to open its anatomy.

Standard 3×4 format: each column is a consecutive 2.5 s window of one continuous simultaneous recording; 1 mV cal pulse leads each row; 10 s lead-II rhythm strip below. Calibrated 25 mm/s · 10 mm/mV. Model: McSharry dynamical ECG → Dower VCG projection.