★ EVERYDAY · COMPARISON · VACUUM COSTS
A robot vacuum costs $124.00 a year and a manual vacuum costs $69.02 — the robot costs $54.98 a year more but saves 104 hours. That is $0.53 per hour saved. Change the prices, hours, or power below and the trade reprices itself instantly.
A robot vacuum is not cheaper — it is a time purchase. This calculator prices both machines the same way: purchase price spread over its life, plus yearly supplies, plus yearly energy. The result is not just two totals but the price of each hour the robot hands back to you.
Yearly cost is purchase price divided by life in years, plus yearly supplies, plus yearly energy. Manual energy is hours per week times 52 weeks times watts divided by 1,000, times the electricity price. Manual: $180 / 8 = $22.50 purchase, plus $20.00 supplies, plus 2.5 × 52 = 130 hours at 1200 W = 156 kWh times $0.17 = $26.52 energy, for a total of $69.02 a year. Robot: $350 / 5 = $70.00 purchase, plus $48.00 supplies, plus $6.00 energy, for a total of $124.00 a year. The difference is $124.00 − $69.02 = $54.98 a year. Hands-on time is 130 − 26 = 104 hours saved, so the price of each saved hour is $54.98 / 104 = $0.53.
Line 1 — manual purchase. $180 / 8 years = $22.50 a year.
Line 2 — manual energy. 130 hours × 1.2 kW = 156 kWh, times $0.17 = $26.52 a year.
Line 3 — manual total. $22.50 + $20.00 + $26.52 = $69.02 a year.
Line 4 — robot total. $70.00 + $48.00 + $6.00 = $124.00 a year.
Line 5 — the trade. $124.00 − $69.02 = $54.98 a year more for 104 hours saved, or $0.53 per hour saved.
Budget robot at $220. The robot purchase cost falls to $44.00 a year and its total falls to $98.00 a year. The gap narrows to $28.98 a year, or $0.28 per hour saved — the same 104 hours, bought much cheaper.
Busy home: 5 hours a week of manual vacuuming. Manual energy doubles to 312 kWh ($53.04) and the manual total rises to $95.54 a year. The robot still costs $124.00, so the gap is only $28.46 a year — but the hours saved jump to 234 (260 minus 26), so each saved hour costs just $0.12. The busier the home, the better the robot's deal.
Pet home. Manual supplies rise to $40 a year (manual total $89.02) and robot supplies rise to $72 a year (robot total $148.00). The gap widens to $58.98 a year, or $0.57 per hour saved — pets cost both machines more, but the robot's consumables cost more.
Five-year totals. Manual: $69.02 × 5 = $345.10. Robot: $124.00 × 5 = $620.00. Over five years the robot costs $274.90 more and saves 520 hours — the same $0.53 per hour, just scaled up.
| Output | Formula | What it means |
|---|---|---|
| Manual yearly cost | Price / life + supplies + energy | $69.02 at the defaults — cheap money, expensive time. |
| Robot yearly cost | Price / life + supplies + energy | $124.00 at the defaults — the price of handing the job over. |
| Extra cost | Robot total − manual total | $54.98 a year — what the robot charges for its service. |
| Hours saved | Manual hours − robot hands-on hours | 104 hours a year — two full work weeks, handed back. |
| Cost per hour saved | Extra cost / hours saved | $0.53 — the one number that settles the argument. |
| Five-year totals | Yearly total × 5 | $345.10 vs $620.00 — the long view of the same trade. |
The arithmetic is exact for the inputs you enter; the model is a simplification. Robot energy is held flat at $6.00 a year in this model, which suits a typical small robot charging a few times a week but understates a large robot running daily in a big home. Robot hands-on time is the wild card: 0.5 hours a week assumes a home the robot can navigate without constant rescue, and cluttered floors, thresholds, and pet accidents can push it well above that. Purchase lives (8 and 5 years) are planning assumptions, not guarantees — a robot's battery often needs replacing before the robot dies, and that cost belongs in supplies if it applies to you. Deep-cleaning performance is not in the model at all: a manual vacuum still cleans carpets and stairs better than most robots, so many homes end up owning both, and this comparison prices either-or, not both. Error policy: empty, zero, or negative inputs, a robot price of zero or less, and inputs above their caps are reported as errors rather than calculated.
Bright Side Kit. "Robot Vacuum vs Traditional Vacuum: Cost Calculator." https://brightoolbox.com/robot-vacuum-vs-traditional-vacuum/ Accessed October 24, 2026.No — at the defaults the robot costs $124.00 a year against $69.02 for a manual vacuum. The robot costs $54.98 a year more, but saves 104 hours a year, which is $0.53 per hour saved.
104 hours a year at the defaults: 130 hours of manual vacuuming minus 26 hours of robot hands-on time (emptying, untangling, rescuing). In a home vacuumed 5 hours a week, the saving jumps to 234 hours a year.
Yes, a lot. A $220 robot costs $44.00 a year in purchase cost instead of $70.00, bringing its total to $98.00 a year. The gap shrinks to $28.98 a year, or $0.28 per hour saved.
They cost more in both directions: pet-home supplies run about $40 a year for manual and $72 for a robot, so the gap widens to $58.98 a year ($0.57 per hour saved). Whether that is worth it depends on how much fur your home produces daily.
$620.00 at the defaults, against $345.10 for a manual vacuum — $274.90 more over five years, for 520 hours saved.
Because it costs more to buy ($350 vs $180) and lasts fewer years (5 vs 8): $70.00 a year against $22.50. That $47.50 gap is most of the robot's premium.
Often, yes — robots struggle with stairs, deep-pile carpets, and edges, so many homes keep a manual vacuum for those jobs. This calculator prices either-or; owning both costs more than either figure here.