Everyday
The tools people reach for every week: shopping, hours, electricity and percentages.
The sums that turn up without warning: how much to tip and how to split the check, what a sale really costs once tax lands on the already-reduced price, or what this pay period comes to if you started mid-month.
These are small calculations made in a hurry and in public, which is exactly when they go wrong. All of them work from a phone with no account, and what you type never leaves your browser.
Tools in Everyday (11)
Puerto Rico IVU Calculator
Money
Sales tax on a purchase, forward or in reverse.
OpenHours Worked Calculator
Work
Add shifts, subtract breaks, cross midnight safely.
OpenElectricity Usage Calculator
Energy
kWh and monthly cost for any appliance.
OpenGenerator Fuel Calculator
Energy
How much fuel it burns and what the outage costs.
OpenAppliance Cost Calculator
Energy
What the A/C or any appliance adds to your bill.
OpenCuerda Converter
Math
Cuerdas to metres, acres, hectares and feet.
OpenPercentage Calculator
Math
Six modes: percent of, what percent, change and more.
OpenTip Calculator
Everyday
Tip and total, split across the table.
OpenDiscount Calculator
Everyday
Sales, stacked coupons and the final price with tax.
OpenGas Cost Calculator
Auto
Trip cost and your monthly commute, in liters.
OpenMarbete Calculator
Auto
Fees, ACAA, insurance and inspection: your total.
Open