Freelance › Projects › Texts and translation › Fuel Consumption Calculator Widget Needed for a Car Blog
Fuel Consumption Calculator Widget Needed for a Car Blog
Employer
Mykola
Project parameters
Type of cooperationOne-time project
SectionTexts and translation
Prepaymentwithout prepayment
Payment methodsCash, Bank transfer
Acceptance of requestsfrom today, 04:58 until Sep 5, 2026
Project description
I run a small automotive blog and want to add an interactive widget that helps readers estimate how much fuel a planned trip will take and roughly what it will cost. A visitor enters the distance of the trip in kilometers and the average fuel consumption of their car per 100 km, and the widget instantly works out the fuel needed in liters and the approximate trip cost once a price per liter is entered.
The calculator should feel like a natural part of the page rather than a plugin bolted on top. It needs to work smoothly on desktop and mobile, update the result live as the visitor types or after a calculate button is pressed, and handle edge cases gracefully, such as empty fields, zero values, unrealistic numbers, or a comma used instead of a dot. It would help if the fuel price field stayed editable for different regions, and if a small toggle let the widget switch between liters and gallons, kilometers and miles.
Visually the widget should be lightweight, match a clean modern car-blog layout, and load fast without heavy libraries — plain JavaScript or a very light framework is preferred. Please deliver a ready-to-embed block of markup, styles and script, with short notes on placing it into an existing page and light code comments so formulas or styling can be adjusted later.
What is needed:
— input fields for trip distance and average fuel consumption per 100 km;
— calculation of required fuel volume and approximate trip cost from a price-per-liter field;
— optional unit toggle between kilometers/miles and liters/gallons;
— responsive layout matching a car-related website design;
— basic input validation with clear, friendly error messages.
The calculator should feel like a natural part of the page rather than a plugin bolted on top. It needs to work smoothly on desktop and mobile, update the result live as the visitor types or after a calculate button is pressed, and handle edge cases gracefully, such as empty fields, zero values, unrealistic numbers, or a comma used instead of a dot. It would help if the fuel price field stayed editable for different regions, and if a small toggle let the widget switch between liters and gallons, kilometers and miles.
Visually the widget should be lightweight, match a clean modern car-blog layout, and load fast without heavy libraries — plain JavaScript or a very light framework is preferred. Please deliver a ready-to-embed block of markup, styles and script, with short notes on placing it into an existing page and light code comments so formulas or styling can be adjusted later.
What is needed:
— input fields for trip distance and average fuel consumption per 100 km;
— calculation of required fuel volume and approximate trip cost from a price-per-liter field;
— optional unit toggle between kilometers/miles and liters/gallons;
— responsive layout matching a car-related website design;
— basic input validation with clear, friendly error messages.
