1,000 watts to kWh per day and month

24.00 kWh/day

for 1,000 W running 24/7 · 720 kWh/month · $118.80/month at 16.5¢

1,000 W by hours of use

Use	Per day	Per month	Cost/month
1 h/day	1.00 kWh	30.0 kWh	$4.95
2 h/day	2.00 kWh	60.0 kWh	$9.90
4 h/day	4.00 kWh	120.0 kWh	$19.80
8 h/day	8.00 kWh	240.0 kWh	$39.60
12 h/day	12.00 kWh	360.0 kWh	$59.40
24 h/day	24.00 kWh	720.0 kWh	$118.80

kWh = W × hours ÷ 1000. Devices with thermostats or compressors cycle, so actual use is often lower than the rated wattage × hours.

24.00 kWh running 24 hours, 8.00 kWh at 8 hours.