Home & Electrical Calculators
Home & Electrical Calculators: Solar, Inverter, AC, Electricity and Home Sizing
These 36 calculators help you size and run your home: solar panels, inverter batteries and generators, AC tonnage and geyser size, appliance electricity cost and LED savings, lighting, water tanks and wiring, plus curtains, blinds, tiles, paint, rugs, sofas, mirrors and tablecloths that fit.
- 36 free tools
- No sign-up
- Made for India (₹, Indian sizes)
- Updated
36 tools
Start here
All home & electrical calculators
Geyser Size CalculatorFamily size to geyser litresAppliance Electricity Cost CalculatorWatts × hours → units & ₹Refrigerator Size CalculatorFamily size → litres & typeWashing Machine Capacity CalculatorFamily size → 6/7/8/9 kgKitchen Chimney Suction CalculatorKitchen size → suction m³/hAir Purifier CADR & Room Size CalculatorRoom size → CADR m³/hCeiling Fan Size CalculatorRoom size → fan sweep mmTV Size & Viewing Distance CalculatorSofa distance → best TV sizePaint Quantity CalculatorRoom size → litres of paintMattress Size Calculator (India)Bed size → standard mattressHouse Wire Size CalculatorLoad → wire sq mm + MCBWater Purifier Selector (TDS)TDS + source to RO, UV or UFRoom Lighting (Lumens) CalculatorRoom size to lumens and LED bulbsWater Tank Size CalculatorFamily size to tank litresCurtain Size CalculatorPanels + 5/7/9 ft lengthBedsheet Size CalculatorMattress to single/double/king sheetTiles CalculatorRoom sq ft to tiles and boxesRug & Carpet Size CalculatorRoom size to 4×6, 5×7, 6×9 ft rugsTotal Cost of Ownership CalculatorPrice + running cost over the yearsExtended Warranty CalculatorWarranty price vs expected repairsRunning Cost Calculator (Refills & Consumables)Device + refills, cost per useRepair or Replace Calculator50% rule + life leftTablecloth Size CalculatorTable size + drop to tableclothWeighted Blanket Weight CalculatorBody weight to blanket weightWindow Blind Size CalculatorWindow size to blind sizeSofa Size CalculatorWall + room to sofa sizeBathroom Mirror Size CalculatorVanity width to mirror sizeBalloon Arch & Garland CalculatorArch length to balloon countDilution Ratio CalculatorRatio + bottle to concentrate and waterLED Savings CalculatorOld bulbs vs LED savingsLumens to Watts CalculatorLumens ↔ watts by bulb typeMicrowave Wattage ConverterRecipe time to your microwaveGenerator Size Calculator (kVA)Appliances to generator kVA
No calculator matches that search. Search all 248 calculators.
Frequently asked questions
What size inverter do I need?
Add up the watts of what must run during a power cut; the inverter battery calculator gives the VA and battery Ah.
How do I cut my electricity bill?
Switch to LED, choose 5-star ACs and fridges for heavy use, and check running costs before buying.
What AC tonnage for my room?
Roughly 1 ton for up to about 120 sq ft and 1.5 ton for 120–180 sq ft, more for top floors and sunny rooms.
More calculator collections
Latest from the blog
View all blogs →
Guide
Which Helmet Is ISI Certified and Safe Under Rs. 2000?
Guide
Best Helmet Brands in India: Vega vs Steelbird vs Studds
Guide
Best 7 Solar Geysers for Indian Homes (300L Buyer’s Guide)
Guide
Top 10 Solar Garden Lights for Indian Homes 2026
Guide
5 Types of Solar Collectors: Flat-Plate, Evacuated Tube, and Concentrating
Guide
Types of Solar Panels in India: Region-Specific Buying Guide
