Small sums for real life: the generator, the group dinner and the shared house.
Quick calculators for the money questions that come up at home and with friends, like what the generator is really costing you each month and who owes what after dinner. Type in your own numbers and prices, in any currency, and get a clear answer you can share.
Made for: Households and shops that run a generator, Friends splitting a restaurant bill or a trip, Housemates sharing rent, power and data, Anyone who wants to know where the money goes each month.
Running a generator is often one of the biggest hidden costs in a home or small shop. The sum is simple: litres used per hour, times hours run per day, times the price per litre. What surprises people is the monthly total. Seeing it written down makes it easier to decide whether to run fewer hours, switch off heavy appliances, or look at alternatives such as solar for some of your load.
A generator only burns what the load asks of it, so the same machine uses less fuel powering a few lights than running an air conditioner. Check the manufacturer's figures for your model, and remember that older or poorly serviced engines often use more. Regular servicing is cheaper than wasted fuel.
Splitting bills is mostly about agreeing the rule before the bill arrives. Equal shares are quick and work well when everyone had roughly the same. Splitting by what each person ordered is fairer when one friend had a salad and another had the lobster. Decide together how to handle service charge, tips and the person who only had water.
For shared houses, write the arrangement down: who pays what for rent, power, fuel, water and internet, and by which date each month. Agree what happens when someone travels for a few weeks or has a guest staying. A clear split, shared in the group chat where everyone can see it, prevents the slow resentment that quietly ends friendships.
It is as accurate as the figures you enter. Fuel use depends on your generator's size, age, condition and how much you plug in, so use the manufacturer's consumption figure and adjust it to match what you actually buy.
Yes. Split equally, or enter what each person had and let the tool share tax, service charge and tip in proportion.
Yes. Choose any currency and the figures are formatted to match.
No. The sums happen in your browser on your own device. Nothing you type is sent to us.
These calculators give rough estimates for everyday planning only; actual costs depend on your equipment, prices and usage, and you are responsible for operating any generator safely and in line with the manufacturer's instructions.