| Total Cost of Ownership Calculator |
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| Gray cells are calculated for you. You do not need to enter anything into them. |
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Cost per year |
CRT monitor |
LCD monitor |
LCD monitor savings |
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| Purchase cost |
17.59 |
39.08 |
(21.50) |
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| Cost of power |
5.33 |
2.53 |
2.81 |
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| Cost of space |
1,184.38 |
312.54 |
871.84 |
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| Visual task time |
$6,260.83 |
$5,378.63 |
$882.21 |
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| Total |
$7,450.55 |
$5,693.70 |
$1,756.85 |
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Assumptions |
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Unit of measurement |
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| Product 1 [CRT monitor] |
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| Purchase price |
150 |
Dollars |
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| Power consumption |
100 |
Watts per hour |
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| Standby power |
8 |
Watts |
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| Width |
16 |
Inches |
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| Depth |
18 |
Inches |
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| Life expectancy |
20000 |
Hours |
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| Product 2 [LCD monitor] |
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| Purchase price |
500 |
Dollars |
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| Power consumption |
47 |
Watts per hour |
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| Standby power |
5 |
Watts |
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| Width |
19 |
Inches |
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| Depth |
4 |
Inches |
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| Life expectancy |
30000 |
Hours |
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Indirect costs |
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| Cost |
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Unit of measurement |
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| Normal annual office hours |
2,345 |
Hours per year |
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| Average employment cost |
14.71 |
Dollars per hour |
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| Time spent using computer |
33% |
Percentage of working week |
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| Time spent visual searching |
15% |
Percentage of computer use |
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| Speed increase in visual tasks |
25% |
Percent by which speed is increased |
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| Reading time |
40% |
Percentage of computer use |
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| Speed increase in reading |
10% |
Percent by which speed is increased |
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| Cost of electricity |
6.63 |
Cents per 100 KW per hour |
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| Average office cost |
592.19 |
Dollars per sq. ft per year |
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| % left on with power saving |
10% |
Percentage of computers |
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| % left on without power saving |
5% |
Percentage of computers |
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