Fuel Cost Calculator App made on ReactJS

FuelCostCalculator.js

import { useState } from "react";

function App() {
  const [tripDistance, setTripDistance] = useState(0)
  const [fuelConsumption, setFuelConsumption] = useState(0)
  const [costPerLitre, setCostPerLitre] = useState(102)
  const [totalCost, setTotalCost] = useState(0)

  const calculateCost = () => {
    const total_fuel_burnt = tripDistance / fuelConsumption
    const totalCost = total_fuel_burnt * costPerLitre
    setTotalCost(totalCost)
  }

  return (
    <div className="min-h-screen bg-indigo-500 p-10">
      <div className="bg-white p-5 max-w-md mx-auto rounded">
        <h1 className="text-xl font-bold">Fuel Cost Calculator</h1>
        <p className="text-gray-600">Used to calculate your fuel expense.</p>

        <div className="space-y-2 mt-5">
          <div className="flex justify-between items-center">
            <p>Trip Distance</p>
            <input type="number" placeholder="Distance in Numbers" className="border px-2 py-1 rounded" onChange={e => setTripDistance(e.target.value)} />
          </div>
          <div className="flex justify-between items-center">
            <p>Fuel Consumption</p>
            <input type="number" placeholder="Fuel Consumption" className="border px-2 py-1 rounded" onChange={e => setFuelConsumption(e.target.value)} />
          </div>
          <div className="flex justify-between items-center">
            <p>Cost Per Litre (₹)</p>
            <input type="number" placeholder="Cost Per Litre" className="border px-2 py-1 rounded" onChange={e => setCostPerLitre(e.target.value)} />
          </div>
          <div className="text-center space-x-4 pt-5">
            <button className="px-2 py-1 rounded bg-gray-100 hover:bg-gray-200">Reset</button>
            <button className="px-2 py-1 rounded bg-indigo-500 text-white hover:bg-indigo-600" onClick={calculateCost}>Calculate</button>
          </div>
          {totalCost === 0 || <p className="text-xl font-semibold border-t pt-3">Total Fuel cost is ₹{totalCost}</p>}
        </div>
      </div>
    </div>
  );
}

export default App;