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Data-driven hubs with a dedicated page per model, city, year, or event.
Event Countdowns
Countdowns to holidays and events
84 eventsAI Coding Cost
What every dollar of AI coding spend actually buys you, model by model
25 modelsSchool Holidays
Countdowns and bridge days for all German states
264 eventsSteam Games
Revenue estimates for popular Steam games
2472 gamesParental Leave Planner
Financial planning for civil servants on parental leave
51 scenariosCup Conversions
Cups to grams, ounces, ml — per ingredient
15 ingredientsProperty Tax Calculator
2025 property tax by city Hebesatz
20 citiesVolume Conversions
Cups to ounces, ml, tablespoons & more
14 conversionsCalories Burned
How many calories any activity burns
78 activitiesLength Conversions
Inches, feet, cm, mm, meters & miles
22 conversionsWeight Conversions
Kilograms, pounds, grams, ounces & stone
20 conversionsArea Conversions
Square feet, meters, acres, hectares & miles
22 conversionsDog Tax Germany
Annual dog tax (Hundesteuer) by German city
200 citiesSpeed Conversions
mph, km/h, knots, m/s & ft/s
16 conversionsTemperature Conversions
Celsius, Fahrenheit & Kelvin
6 conversionsPower Conversions
Kilowatts, horsepower, PS & watts
16 conversionsData Storage Conversions
GB, MB, KB, TB, bytes & bits
16 conversionsEnergy Conversions
Joules, kWh, kcal, calories & BTU
16 conversionsRetirement Planner
Pension by birth year — statutory, civil servants, survivors
65 cohortsPressure Conversions
psi, bar, kPa, atm & mmHg
16 conversionsFrequency Conversions
Hz, kHz, MHz, GHz, rpm & rad/s
16 conversionsAngle Conversions
degrees, radians, gradians, arcmin, arcsec & turns
16 conversionsFuel Economy Conversions
mpg, L/100km & km/L — US and imperial gallons
12 pairsRunning Pace Conversions
min/km, min/mile, km/h & mph — pace ↔ speed
10 pairsData Rate Conversions
Mbps, MB/s, Gbps, kbps & more
16 conversionsTime Conversions
Seconds, minutes, hours, days & weeks
16 conversionsAP Score Calculators
Predict your 1–5 on every AP exam
26 examsCurrency Conversions
USD, EUR, GBP & 20+ currencies at ECB reference rates
378 conversionsFraction & Decimal
Decimals to fractions, percents & back — exact answers
199 convertersEV Running Costs
Running cost, charging cost & TCO by model
251 modelsNumber Bases
Binary, octal, decimal & hex — convert any base
207 convertersShoe Sizes
US, UK, EU & cm shoe-size charts for men & women
24 conversionsTime Formats
Military time, Unix timestamps & decimal time
102 convertersRoman Numerals
Numbers to roman numerals & back — with breakdowns
306 convertersForce
Newtons, pounds-force, kgf, dyne & poundal
20 convertersTorque
Newton-metres, lb-ft, lb-in, kgf·m & oz-in
18 converters