When is it cheaper to rent a Portable Diesel Air Compressor, #2 by the week than by the day?

From day 4. 4 days at the $192 day rate would be $768, but the weekly rate caps it at $765.

When is it cheaper to rent a Portable Diesel Air Compressor, #2 on the 28-day rate?

From day 22. At that point the week-and-day composition reaches the $2,394 28-day rate, and the price stops climbing for the rest of the cycle.

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 Diesel Air Compressor, #2

See the listing →

Simon Equipment Rentals · Compressors - Air Compressors

Day: $192
Week: $765
28 days: $2,394

Daily stops winning on

day 4

4 days at the day rate would be $768. On the week rate it is $765.

Weekly stops winning on

day 22

22 days at the day rate would be $4,224. On the 28-day rate it is $2,394.

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 Diesel Air Compressor, #2, days 1 to 35
Days	At the day rate	On the ladder	Difference	Rate in play
1	$192	$192	—	day
2	$384	$384	—	day
3	$576	$576	—	day
4	$768	$765	you save $3	week
5	$960	$765	you save $195	week
6	$1,152	$765	you save $387	week
7	$1,344	$765	you save $579	week
8	$1,536	$957	you save $579	week
9	$1,728	$1,149	you save $579	week
10	$1,920	$1,341	you save $579	week
11	$2,112	$1,530	you save $582	week
12	$2,304	$1,530	you save $774	week
13	$2,496	$1,530	you save $966	week
14	$2,688	$1,530	you save $1,158	week
15	$2,880	$1,722	you save $1,158	week
16	$3,072	$1,914	you save $1,158	week
17	$3,264	$2,106	you save $1,158	week
18	$3,456	$2,295	you save $1,161	week
19	$3,648	$2,295	you save $1,353	week
20	$3,840	$2,295	you save $1,545	week
21	$4,032	$2,295	you save $1,737	week
22	$4,224	$2,394	you save $1,830	28-day
23	$4,416	$2,394	you save $2,022	28-day
24	$4,608	$2,394	you save $2,214	28-day
25	$4,800	$2,394	you save $2,406	28-day
26	$4,992	$2,394	you save $2,598	28-day
27	$5,184	$2,394	you save $2,790	28-day
28	$5,376	$2,394	you save $2,982	28-day
29	$5,568	$2,586	you save $2,982	day
30	$5,760	$2,778	you save $2,982	day
31	$5,952	$2,970	you save $2,982	day
32	$6,144	$3,159	you save $2,985	week
33	$6,336	$3,159	you save $3,177	week
34	$6,528	$3,159	you save $3,369	week
35	$6,720	$3,159	you save $3,561	week

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

What checkout will quote you

Rental · 22 days: $2,394
Rental protection (RPP): $359.10
Service fee: $239.40
Estimated total: $2,992.50

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.