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How Much Does Each Appliance Cost to Run?

Built by Kevin Glover · @gloverbuilds · Verified formula

Calculate your electricity cost by appliance — AC, washer, TV, computer, lights. See which devices are draining your wallet.

📅 Updated April 2026 ✅ Formula verified 📖 4 min read 🆓 Free · No sign-up

In this article

What Uses the Most Electricity?
How to Lower Your Bill
Understanding Your Rate

Coût par Appareil

Formule : watts × heures/jour × 30 ÷ 1 000 × prix/kWh. Climatisation (3 500W × 8h) : ~85 €/mois en été. Réfrigérateur (150W continu) : ~15 €/mois. Sèche-linge (5 000W × 1h × 8 charges) : ~5 €/mois. TV 65" (150W × 5h) : ~3 €/mois. Le chauffage/climatisation représente 46% de la facture totale.

Comment Réduire

Thermostat intelligent : -100-200 €/an. LED partout : -75-150 €. Calfeutrer les fuites d'air : -50-200 €. Appareils Energy Star. Un audit énergétique professionnel (100-300 €) identifie exactement où votre maison perd de l'argent.

⚡ CalcWolf Insight

The Department of Energy estimates that phantom loads (standby power) account for 5-10% of residential electricity use — $100-200/year for the average household. A smart power strip ($25-35) that cuts power to idle devices pays for itself in 2-4 months.

Frequently asked questions

Quel appareil consomme le plus ?▾

Chauffage/climatisation : 46% de la facture. Chauffe-eau : 14%. Gros électroménager : 13%. Éclairage : 9%.

Combien coûte laisser la TV allumée toute la journée ?▾

TV 65" : ~150W × 24h = 3,6 kWh × 0,17 €/kWh = 0,61 €/jour = 18 €/mois. Pas énorme mais les appareils en veille s'accumulent.

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Kevin Glover · @gloverbuilds

Founder, CalcWolf · GLVTS · Blickr

All formulas sourced from primary references — IRS publications, peer-reviewed research, and official standards. Results are tested against independent reference calculators before publishing. Rates and brackets updated when official sources change. Editorial policy →