PHEV Cost Planner gives plug-in hybrid drivers clarity on whether charging pays off. Enter your battery capacity, electric range, electricity tariff, and fuel consumption to get an instant comparison of PHEV vs fuel-only costs for every 1,000 km you drive. WHY DRIVERS LOVE IT • Cost snapshot with a savings gauge and charges-per-1,000-km metric. • Electricity, fuel, and range inputs tailored to your real-world data. • Break-even checkpoints showing price and consumption thresholds that flip the advantage. • What-if explorer sliders to simulate new tariffs or seasonal efficiency changes. • Results sheet with stacked bars that explain electricity vs fuel contributions. • Built-in field guide that clarifies every input with practical advice. EXTRAS • Works offline; nothing leaves your device. • Choose Euro, USD, or GBP and match the interface to light, dark, or system mode.