The model, stated exactly
Annual laundromat cost = loads per week × 52 × (wash price + dry price). Annual home cost = (upfront cost ÷ lifespan years) + loads per week × 52 × per-load cost. The saving is the laundromat annual total minus the home annual total: positive means the home washer is cheaper, negative means the laundromat is cheaper. The home fixed slice is rounded to cents before it is added to the variable slice, so the displayed annual total always equals the two displayed parts. A load means one washer cycle on both sides, so the comparison stays apples-to-apples even if your loads differ in size.
The worked example, line by line
Setup: 4 loads a week, laundromat wash $3.75 and dry $2.75, home washer $700 over 11 years, home per-load cost $1.10.
Line 1 — loads per year. 4 × 52 = 208 loads.
Line 2 — laundromat per load. $3.75 + $2.75 = $6.50 per load.
Line 3 — laundromat annual. 208 × $6.50 = $1,352.00 a year.
Line 4 — home fixed slice. $700 ÷ 11 = $63.64 a year.
Line 5 — home variable slice. 208 × $1.10 = $228.80 a year.
Line 6 — home annual. $63.64 + $228.80 = $292.44 a year, or $1.41 per load all-in.
Line 7 — the saving. $1,352.00 − $292.44 = $1,059.56 a year to the home washer.
Try these
Light use: 2 loads a week. Laundromat $676.00 a year against home $178.04, so the home washer still saves $497.96. Halving the laundry does not halve the verdict, because the home fixed slice barely moves.
Heavy use: 7 loads a week. Laundromat $2,366.00 a year against home $464.04, so the home washer saves $1,901.96. Every extra load is another $6.50 at the laundromat and only $1.10 at home, so the gap grows by $5.40 a load.
Pricier wash: wash $5.00 a load. Laundromat per load rises to $7.75, so the laundromat year becomes $1,612.00 while home stays $292.44, and the saving grows to $1,319.56. In expensive laundromat towns the home washer pays for itself faster.
Minimal use: 1 load a week. Laundromat $338.00 a year against home $120.84, so the home washer still saves $217.16. The break-even sits far lower, at about 0.23 loads a week: even 12 loads in a whole year costs $78.00 at the laundromat against $76.84 at home, a $1.16 edge to the home washer.
Output · formula · meaning
| Output | Formula | What it means |
| Laundromat annual | Loads/week × 52 × (wash + dry) | $1,352.00 at the defaults — what a year of paying per cycle really adds up to. |
| Home annual | (Upfront ÷ lifespan) + loads/week × 52 × per-load | $292.44 at the defaults — $63.64 fixed plus $228.80 running costs. |
| Home per load, all-in | Home annual ÷ loads per year | $1.41 at the defaults, against $6.50 at the laundromat — the fair per-load comparison. |
| Annual saving | Laundromat annual − home annual | $1,059.56 at the defaults — positive means the home washer wins; negative would mean the laundromat wins. |
Who uses this
- The renter choosing a flat: compares a unit with hookups against a cheaper unit near a laundromat, and finds the hookup flat can cost more in rent yet still win on total laundry cost.
- The new homeowner pricing appliances: tests a $700 machine against a $1,200 machine and sees the dearer one adds only a few dollars a year when spread over its life.
- The family with a mountain of laundry: enters 7 or more loads a week and watches the laundromat year climb past $2,000, settling the buy-or-haul argument for good.
- The single person doing one load a week: checks whether the laundromat finally wins at low volume, and discovers the home washer still edges it by $217.16 a year.
Accuracy & limitations
The comparison is exact for the numbers you enter, but it prices only the laundry itself. It leaves out your time at the laundromat, travel or parking, laundromat folding and vending extras, home washer repairs, and the value of the space a washer takes. The per-load home figure bundles water, electricity, and detergent into one number you supply: if your water is metered at high rates or you use premium detergent, raise it and rerun. Lifespan is an average, not a promise: a machine that dies at 7 years instead of 11 raises the home year from $292.44 to $328.80 at the defaults, which still leaves a $1,023.20 saving, but a machine that dies twice in 11 years would need its own replacement cost entered as a higher upfront figure. Error policy: missing, negative, or out-of-range inputs are reported as errors rather than calculated.
Cite this calculatorBright Side Kit. “Laundromat vs Home Washer Cost Calculator — Bright Side Kit.” brightoolbox.com, 2026.Bright Side Kit. "Laundromat vs Home Washer Cost Calculator." https://brightoolbox.com/laundromat-vs-home-washer/ Accessed October 24, 2026.
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