Break-even duration

Equipment rents on three rates — a day rate, a week rate and a 28-day rate — and the cheapest one changes as the job runs long. This finds the two days where it changes, on a real listing’s real published rates.

Portable Power Station

See the listing →

tristan de Delva · Generators - Battery Storage

Day
$10
Week
$50
28 days
$75

Daily stops winning on

day 6

6 days at the day rate would be $60. On the week rate it is $50.

Weekly stops winning on

day 10

10 days at the day rate would be $100. On the 28-day rate it is $75.

The working

Whole weeks bill at the week rate; the leftover days bill at the day rate but never add up to more than one extra week; and a whole 28-day cycle never costs more than the 28-day rate. That is the rule, applied one day at a time.

Rental price by duration for Portable Power Station, days 1 to 35
DaysAt the day rateOn the ladderDifferenceRate in play
1$10$10—day
2$20$20—day
3$30$30—day
4$40$40—day
5$50$50—day
6$60$50you save $10week
7$70$50you save $20week
8$80$60you save $20week
9$90$70you save $20week
10$100$75you save $2528-day
11$110$75you save $3528-day
12$120$75you save $4528-day
13$130$75you save $5528-day
14$140$75you save $6528-day
15$150$75you save $7528-day
16$160$75you save $8528-day
17$170$75you save $9528-day
18$180$75you save $10528-day
19$190$75you save $11528-day
20$200$75you save $12528-day
21$210$75you save $13528-day
22$220$75you save $14528-day
23$230$75you save $15528-day
24$240$75you save $16528-day
25$250$75you save $17528-day
26$260$75you save $18528-day
27$270$75you save $19528-day
28$280$75you save $20528-day
29$290$85you save $205day
30$300$95you save $205day
31$310$105you save $205day
32$320$115you save $205day
33$330$125you save $205day
34$340$125you save $215week
35$350$125you save $225week

Rental rates only. Protection and the marketplace service fee are added on top — see the checkout figure below.

What checkout will quote you

Rental · 10 days
$75
Rental protection (RPP)
$11.25
Service fee
$7.50
Estimated total
$93.75

Pick a listing

The numbers come from one operator’s published rates, so the tool needs to know whose.

Where these numbers come from

The rates are the operator’s own, read live from their listing. The arithmetic is the same best-price billing engine that produces 2Quip invoices — not a second copy written for this page — run on the industry-standard terms: a 28-day cycle, whole weeks at the week rate, leftover days at the day rate capped at one more week.

An operator can agree different terms on an individual rental, and a long rental bills per 28-day cycle rather than in one lump. So treat this as what the rate card says, and the operator’s quote as what you are agreeing to.