Lifestyle & DIY
GPA converter, electricity bill, typing speed, and everyday lifestyle utility tools
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(CLS Prevention Active 路 Zero Shift)Available Tools (12)
University GPA Converter & Target Planner
Convert GPAs between 4.5, 4.3, 4.0 scales, and 100-point percentiles, with a target graduation GPA roadmap simulator.
Appliance Wattage & Electricity Bill Calculator
Calculate monthly power consumption in kWh and projected residential utility bills across tiered rate structures.
Paint, Wallpaper & Tile Area Calculator
Calculate paint liters/gallons, wallpaper rolls, and tile boxes from room dimensions and opening deductions.
TV Viewing Distance & Screen Size Calculator
Determine optimal TV diagonal size (inches) and ergonomic wall mount height based on sofa viewing distance.
Air Conditioner Cooling Capacity (BTU & Pyeong) Calculator
Calculate required AC cooling capacity in BTU/hr, Watts, and Korean Pyeong with room load factors.
Personalized Travel Packing Checklist
Generate tailored travel packing checklists based on destination, season, duration, and activities with persistent offline save.
Dew Point, Relative & Absolute Humidity Calculator
Calculate dew point temperature, vapor pressure, and absolute humidity using the Magnus formula with window condensation risk assessment.
Coffee Brewing Golden Ratio & Water Dose Calculator
Calculate dry coffee dose, total water, and multi-stage pour schedules for pour-over, Chemex, French press, and cold brew.
Baker's Percentage & Sourdough Dough Scaler
Scale bread recipes using 100% flour baseline baker's percentages, sourdough levain hydration decoupling, and loaf portioning.
Aquarium Tank Volume, Substrate & Heater Wattage Calculator
Calculate net aquarium water volume in liters and gallons, substrate weight, total loaded tank weight, and heater wattage.
Air Fryer to Oven Temperature & Cook Time Converter
Convert cooking temperature and time between conventional ovens and air fryers with food category presets and shake intervals.
Moving Box Volume & Truck Tonnage (1T/2.5T/5T) Estimator
Calculate household moving inventory volume in CBM, required moving boxes, and recommended truck tonnage and crew size.
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