Private by default
Calculations run in your browser. Nothing is sent to us.
Useful answers, without the jargon
Simple calculators for everyday costs. Your numbers stay on this device.
EV charging cost
Estimate a charge using your own tariff.
Estimated charge cost
Formula: battery × (end − start) ÷ 100 ÷ (1 − loss ÷ 100) × price
Appliance electricity cost
See what one device costs to run each month.
Estimated monthly cost
Formula: watts ÷ 1,000 × hours × days × price
Trip fuel cost
Split the fuel cost of a journey.
Estimated trip cost
Formula: distance × consumption ÷ 100 × price
Percentage change
Turn two numbers into a clear increase or decrease.
Change
Formula: (new − old) ÷ |old| × 100
Monthly budget template
Plan privately. Entries save only in this browser.
Monthly income
Housing
Food
Transport
Utilities and phone
Health
Other spending
Money left
Explainable maths
Every result uses a short, visible formula.
No hidden assumptions
Prices and usage are always yours to enter.
Everyday cost calculators in plain language
CalcuLocal turns electricity, travel, percentage and household-budget questions into quick answers. Results are estimates, not financial advice.