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Tip, GPA, fuel cost, and everyday calculators. All calculators are free, instant, and require no signup.
39 available
Convert area between Indian units (bigha, biswa, katha, gaj, guntha, ground, cent, chatak) and standard units (sqft, sqm, sqyd, hectare, acre). Bigha sizes vary by state — supports UP, Bihar, MP, HP, Rajasthan, Punjab variants.
Estimate on-road price of a new car = ex-showroom price + RTO road tax (state-wise) + registration fee + insurance (TP + OD + add-ons) + handling charges. Supports all 28 states/UTs and fuel types (petrol/diesel/EV/CNG).
Calculate fuel cost for any trip — enter distance, vehicle mileage, fuel type (petrol/diesel/CNG/EV), and city. Shows total fuel needed, total cost, cost per km, and EV-vs-ICE comparison.
Calculate monthly electricity bill across 8 major state discoms (MSEDCL Maharashtra / BESCOM Karnataka / TNEB Tamil Nadu / BSES Delhi / KSEB Kerala / UPPCL UP / TSSPDCL Telangana / APSPDCL Andhra). Applies state-specific slab tariff structure + fixed charges + electricity duty + GST.
Calculate monthly AC running cost from tonnage (0.75T / 1T / 1.5T / 2T), ISEER star rating (1-5 star), daily usage hours, and your state's electricity tariff. Compares 3-star vs 5-star payback period.
Calculate required AC tonnage based on room size (sqft), ceiling height, climate zone (hot / very hot), sun exposure, occupants, and appliances. Returns 0.75 / 1 / 1.5 / 2 / 2+ ton recommendation with reasoning.
Calculate solar rooftop installation ROI with PM Surya Ghar subsidy (₹30K-₹78K for 1-3kW, max ₹78K for 3-10kW), state-specific tariff, monthly bill savings, and 25-year payback. Supports kW capacity from 1-10kW residential.
Calculate cost to charge your electric vehicle at home (₹6-10/kWh slab tariff) vs public AC slow (₹8-15/kWh) vs DC fast (₹18-25/kWh). Returns full-charge cost, cost per km, and savings vs petrol/diesel equivalent.
Calculate tip amount and split the bill among friends. Supports custom tip percentages.
Calculate your GPA by entering grades and credit hours. Supports 4.0 scale.
Calculate your final course grade based on assignments, exams, and their weights.
Find your love compatibility percentage with your partner using name-based algorithm.
Generate strong, secure random passwords with custom length and character options.
Calculate the square footage of rooms, floors, and properties in multiple shapes.
Calculate how many cubic yards or bags of concrete you need for any project.
Calculate subnet mask, network address, broadcast address, and usable host range.
Convert numbers to Roman numerals and Roman numerals back to regular numbers.
Roll any number and type of dice: D4, D6, D8, D10, D12, D20, and custom dice.
Convert shoe sizes between India, US, UK, EU and international systems. India sizes follow UK sizing (Bata, Liberty, Khadim); convert from US/EU labels on imported brands.
Calculate roofing squares and shingles needed for any roof size and pitch.
Calculate the number of tiles needed for any floor or wall with waste factor.
Calculate how many cubic yards or bags of mulch you need for any garden area.
Calculate how much gravel you need in tons, cubic yards, or bags for any project.
Calculate stair dimensions: number of steps, riser height, and tread depth.
Calculate the BTU needed to heat or cool a room based on square footage and conditions.
Calculate heat index (feels-like temperature) from air temperature and relative humidity.
Calculate dew point temperature from air temperature and relative humidity.
Find your correct bra size from band and bust measurements (cm or inches), with India brand guidance (Enamor, Zivame, Clovia) plus US, UK and EU size conversions.
Calculate your golf handicap index and course handicap under the World Handicap System (WHS), used by the Indian Golf Union and worldwide.
Calculate tire diameter, sidewall height, and compare tire sizes from P-metric notation.
Calculate horsepower from torque and RPM, or convert between HP, kW, and PS.
Calculate download time, file transfer duration, and bandwidth requirements.
Encode plain text to Base64 or decode Base64 strings back to readable text.
Count words, characters, sentences, paragraphs, and reading time of any text. Free online tool for writers, students, and content creators.
Convert your dog's age to human years using the modern epigenetic formula plus breed size adjustments. More accurate than the old 'multiply by 7' rule.
Convert your cat's age to human years using the AAFP/AAHA life-stage formula. Find out how old your cat really is in human terms.
Convert between cups, grams, ounces, tablespoons, teaspoons, and milliliters for any common ingredient. Includes ingredient-specific densities for accurate baking.
Calculate how long it takes to read any text or word count, with custom reading speeds for slow, average, fast, and speed readers.
Calculate your Life Path Number, Destiny Number, Soul Urge Number, and Personality Number from your birth date and full name. Pythagorean numerology system.
Not every calculation is about money, health, or maths homework — a lot of daily life is small, practical sums. Our lifestyle calculators handle exactly these: converting a GPA to a CGPA or percentage, working out the cost of a road trip's fuel, splitting a restaurant bill and tip, converting cooking measurements, or even the fun stuff like pet-age and compatibility tools. They are the everyday helpers you reach for without thinking twice.
This category is genuinely India-aware. The GPA and CGPA tools follow the 10-point scales used by CBSE and Indian universities, the AC-tonnage calculator sizes cooling for Indian room areas and climate, fuel-cost tools work in rupees per litre, and the cooking converter knows the 200 ml Indian cup. Alongside these are widely used utilities — word counter, percentage-style everyday tools, shoe-size conversion, and Base64 encoding for the more technical user.
All lifestyle calculators are free, mobile-first, and need no signup, with everything computed privately on your device. The practical tools aim for real-world accuracy; the light-hearted ones — like the love or friendship calculators — are clearly meant for fun and entertainment, not science. Pick the tool you need, get an instant answer, and get on with your day.