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.

Champion 7500 watt generator

See the listing →

Brandon foley · Generators - Portable

Day
$60
Week
$378
28 days
$1,440

Daily stops winning on

day 7

7 days at the day rate would be $420. On the week rate it is $378.

Weekly stops winning on

day 27

27 days at the day rate would be $1,620. On the 28-day rate it is $1,440.

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 Champion 7500 watt generator, days 1 to 35
DaysAt the day rateOn the ladderDifferenceRate in play
1$60$60—day
2$120$120—day
3$180$180—day
4$240$240—day
5$300$300—day
6$360$360—day
7$420$378you save $42week
8$480$438you save $42week
9$540$498you save $42week
10$600$558you save $42week
11$660$618you save $42week
12$720$678you save $42week
13$780$738you save $42week
14$840$756you save $84week
15$900$816you save $84week
16$960$876you save $84week
17$1,020$936you save $84week
18$1,080$996you save $84week
19$1,140$1,056you save $84week
20$1,200$1,116you save $84week
21$1,260$1,134you save $126week
22$1,320$1,194you save $126week
23$1,380$1,254you save $126week
24$1,440$1,314you save $126week
25$1,500$1,374you save $126week
26$1,560$1,434you save $126week
27$1,620$1,440you save $18028-day
28$1,680$1,440you save $24028-day
29$1,740$1,500you save $240day
30$1,800$1,560you save $240day
31$1,860$1,620you save $240day
32$1,920$1,680you save $240day
33$1,980$1,740you save $240day
34$2,040$1,800you save $240day
35$2,100$1,818you save $282week

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

What checkout will quote you

Rental · 27 days
$1,440
Rental protection (RPP)
$216
Service fee
$144
Estimated total
$1,800

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.