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 Inverter Generator 2200W

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Calvin Barendregt · Generators - Portable

Day
$50
Week
$151
28 days
$350

Daily stops winning on

day 4

4 days at the day rate would be $200. On the week rate it is $151.

Weekly stops winning on

day 15

15 days at the day rate would be $750. On the 28-day rate it is $350.

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 Inverter Generator 2200W, days 1 to 35
DaysAt the day rateOn the ladderDifferenceRate in play
1$50$50—day
2$100$100—day
3$150$150—day
4$200$151you save $49week
5$250$151you save $99week
6$300$151you save $149week
7$350$151you save $199week
8$400$201you save $199week
9$450$251you save $199week
10$500$301you save $199week
11$550$302you save $248week
12$600$302you save $298week
13$650$302you save $348week
14$700$302you save $398week
15$750$350you save $40028-day
16$800$350you save $45028-day
17$850$350you save $50028-day
18$900$350you save $55028-day
19$950$350you save $60028-day
20$1,000$350you save $65028-day
21$1,050$350you save $70028-day
22$1,100$350you save $75028-day
23$1,150$350you save $80028-day
24$1,200$350you save $85028-day
25$1,250$350you save $90028-day
26$1,300$350you save $95028-day
27$1,350$350you save $1,00028-day
28$1,400$350you save $1,05028-day
29$1,450$400you save $1,050day
30$1,500$450you save $1,050day
31$1,550$500you save $1,050day
32$1,600$501you save $1,099week
33$1,650$501you save $1,149week
34$1,700$501you save $1,199week
35$1,750$501you save $1,249week

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

What checkout will quote you

Rental · 15 days
$350
Rental protection (RPP)
$52.50
Service fee
$35
Estimated total
$437.50

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.