function calculate() {
const distance = document.getElementById('distance').value;
const hours = document.getElementById('hours').value;
const minutes = document.getElementById('minutes').value;
const seconds = document.getElementById('seconds').value;
const totalSeconds = (+hours * 3600) + (+minutes * 60) + (+seconds);
const totalHours = totalSeconds / 3600;
if (totalSeconds > 0 && distance > 0) {
const speed = (distance / 1000) / totalHours;
const pace = totalSeconds / (distance / 1000) / 60;
document.getElementById('speed').innerText = speed.toFixed(2);
document.getElementById('pace').innerText = Math.floor(pace) + ':' + ('0' + Math.round((pace - Math.floor(pace)) * 60)).slice(-2);
} else {
alert("Veuillez entrer une distance et un temps valides.");
}
}
