immich/server/apps/immich/src/utils/human-readable.util.ts

const KiB = Math.pow(1024, 1);
const MiB = Math.pow(1024, 2);
const GiB = Math.pow(1024, 3);
const TiB = Math.pow(1024, 4);
const PiB = Math.pow(1024, 5);

export const HumanReadableSize = { KiB, MiB, GiB, TiB, PiB };

export function asHumanReadable(bytes: number, precision = 1): string {
  const units = ['B', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB'];

	let magnitude = 0;
	let remainder = bytes;
	while (remainder >= 1024) {
		if (magnitude + 1 < units.length) {
			magnitude++;
			remainder /= 1024;
		}
		else {
			break;
		}
	}

	return `${remainder.toFixed( magnitude == 0 ? 0 : precision )} ${units[magnitude]}`;
}