Free calculators for loans, tax, investments, carbon and construction
Quick, accurate calculators built for India: rupees in lakh format, current GST and income tax rules, and construction thumb rules in bags, sq ft and cu ft. Nothing to install and nothing you type leaves your phone.
Money
Loan EMIMonthly instalment, total interest and total cost of any loan.Loan prepaymentInterest saved by prepaying, and the new tenure or EMI.Compound interestMoney that earns interest on its interest, year by year.Rent vs buyBuying with a loan vs renting and investing the difference.Credit card interestCost of paying only the minimum due, and how to avoid it.GSTAdd or remove GST with CGST, SGST and IGST split.Salary in handCTC to monthly take-home pay under the new tax regime.SIP returnsFuture value of a monthly SIP, with yearly step-up.Recurring depositMaturity value of a monthly recurring deposit.Retirement & FIRERetirement fund needed with inflation, and the monthly saving.Gold & silver jewelleryJewellery price with making charges and GST, and old-gold value.Currency ratesINR against the dollar, pound, euro and Gulf currencies.Vehicle insuranceThird-party premiums, policy check and insurer links.
Home & travel
Electricity & appliancesWhat your AC, geyser and fridge cost a month at your state's rate.Rooftop solar paybackSolar size for your bill, cost after subsidy, and years to pay back.Petrol vs EVRunning cost of petrol vs EV, savings and payback time.Trip cost & bill splitterFuel or EV cost for a road trip, and who owes whom.Tyre sizeCompare two tyre sizes and the speedometer error.
Carbon footprint
Petrol, diesel & powerCarbon from fuel and electricity use.Car vs bus, train & flightThe same trip by car, bus, train or plane: CO₂ for each.Food & drinks CO₂The CO₂ behind your cola, milk, chips and chocolate.Building materialsEmbodied CO₂ in concrete, bricks, steel and tiles.Making cars & two-wheelersFactory CO₂ for cars, bikes, scooters and EVs.Who emits the most CO₂India, China, USA and EU: CO₂ by fuel, per person, and clean power.