Topics / Home, energy & car
🏠 Home, energy & car costs in Germany: calculators
Service charges, heating, electricity and the car are the biggest running costs for most households in Germany. Use these calculators to check your service-charge statement against averages, estimate heating and power costs including the CO2 price, and see whether balcony solar or the Deutschlandticket pays off.
Calculators & tools
Service charge statement check (Nebenkostenabrechnung)Check your German service-charge statement (Nebenkostenabrechnung): compare each item per m² with the German Tenants' Association survey, …Heating cost calculatorEstimate your annual heating costs and monthly instalment: from your consumption in kWh or from living space and building standard – for …Electricity cost calculator for devicesCalculate the electricity cost of any device from its wattage, daily usage and your price per kWh – per day, month and year, including …CO2 price calculator: heating & fuel 2026/2027Calculate the German CO2 price share of your heating and fuel costs: gas, heating oil, petrol and diesel at €55–65 per tonne (corridor for …Balcony solar calculator: savings & paybackEstimate the annual yield, electricity savings and payback time of a balcony power plant (plug-in solar, Balkonkraftwerk) from module …Property purchase costs in GermanyCalculate the closing costs of buying property in Germany: real estate transfer tax (Grunderwerbsteuer) for all 16 states, notary and …Mortgage calculator (Baufinanzierung)German-style mortgage calculator (Baufinanzierung): monthly rate from loan amount, interest rate and initial repayment, remaining debt …German car tax calculator (Kfz-Steuer)Calculate the annual German vehicle tax (Kfz-Steuer) for passenger cars from engine size, CO2 emissions and first-registration date – …Fuel cost calculator for tripsCalculate the fuel cost of a trip from distance, consumption and fuel price, split it between passengers, and compare with an electric car …Deutschlandticket: is it worth it?Find out whether the Deutschlandticket (€63 per month in 2026) pays off for you: compare with your single tickets or current monthly pass, …Flat handover protocol (Wohnungsübergabeprotokoll)Create a German flat handover protocol (Wohnungsübergabeprotokoll) for moving in or out: meter readings, keys, condition of every room, …Cancellation letter generator (Kündigungsschreiben)Create a correct German cancellation letter (Kündigungsschreiben) in a minute: mobile, internet, gym, electricity, insurance, car …Paint calculator: how much paint do I need?Calculate how many litres of wall paint you need for a room: length, width and height, minus doors and windows, number of coats and …Tile & flooring calculatorCalculate how many tiles or flooring packs you need: area, tile size, cutting waste and m² per pack – with the number of tiles, packs and …Car sale contract template (Germany, private sale)Create a German private car sale contract (Kaufvertrag für Gebrauchtwagen) online: seller, buyer, vehicle data, accident history, price, …Car insurance cancellation deadline (Germany)Work out the last day your German car insurance cancellation (Kfz-Versicherung) must reach the insurer: 30 November for calendar-year …Index rent calculator (Indexmiete)Check a German index-rent increase (Indexmiete, § 557b BGB): new rent = old rent × new CPI ÷ old CPI, the 12-month waiting period and from …Rent or buy calculator (Germany)Rent or buy in Germany? Compare buying with a mortgage (incl. real-estate transfer tax by state, notary, agent, maintenance) with renting …Roof pitch calculator: degrees, percent, rafter lengthFree roof pitch calculator: convert degrees to percent and ratio (1:x), see tangent and cotangent, ridge height above the eaves and rafter …Right triangle calculator (sin, cos, tan, cot)Free right triangle calculator: enter two values (two sides or one side and an angle) and get all sides, both angles, area, perimeter and …Slope calculator (%, ‰, degrees)Free slope calculator for pipes, terraces, driveways and ramps: enter length and height difference, or a target slope, and get percent, per …Stair calculator (DIN 18065)Free stair calculator based on the German standard DIN 18065: from floor-to-floor height get the number of risers, exact riser height, …Concrete calculator (m³ & bags)Free concrete calculator: slab or strip foundation (length × width × depth) or round post holes – volume in m³, weight and the number of …Voltage drop & cable size calculatorFree voltage drop calculator: single-phase 230 V or three-phase 400 V, cable length, current, cos φ and conductor (copper/aluminium) – …Spindle speed & feed calculatorFree speed and feed calculator: n = vc × 1000 ÷ (π × d) for drilling, milling and turning, feed rate vf = n × fz × z, plus reverse …Area calculator (m²)Free area calculator in square metres: rectangle, L-shaped room, triangle, circle and trapezoid – with perimeter and a waste allowance for …Wallpaper calculator: how many rolls?Free wallpaper calculator: number of rolls from room length, width and height, minus doors and windows, with roll width/length and pattern …Flooring calculator: laminate, vinyl & parquetFree flooring calculator for laminate, vinyl and parquet: floor area, waste allowance by laying pattern, number of packs and skirting board …Gravel, soil & mulch calculatorFree calculator for gravel, sand, crushed stone, topsoil and bark mulch: enter area and depth to get cubic metres, approximate tonnes …Rent increase check (§ 558 BGB)Free rent increase check for tenants in Germany: is an increase to the local comparative rent (Mietspiegel) allowed? Checks the 20 % or 15 …Rent deposit calculator (§ 551 BGB)Free rent deposit calculator for Germany: maximum deposit of three net cold rents, payment in three monthly instalments with due dates, and …Rental yield calculatorFree rental yield calculator: gross yield, net yield after non-recoverable costs and purchase costs, purchase price factor …EV charging cost & time calculatorFree electric car charging calculator: cost per charge and per 100 km at home, at AC and DC public chargers, charging time by charger power …
Guides
Service charges in Germany 2026: what is normal per m²?Average operating costs per m² and month by item (German Tenants' Association survey) – converted to 50, 70 and 90 m² flats. All items …Electricity price increase in Germany: how to use your special right to cancelYour German electricity supplier raised prices for 2027? How the special cancellation right works (§ 41 EnWG), the deadlines in basic …Switching car insurance in Germany: deadline 30 November 2026How to switch your German car insurance (Kfz-Versicherung) for 2027: the 30 November deadline, special cancellation rights, what to compare …What changes in 2027: minimum wage, Minijob, Deutschlandticket & moreThe most important changes for employees, consumers and small businesses in Germany in 2027 – minimum wage, Minijob limit, …