When is it cheaper to rent a Portable Air Compressor, #7 by the week than by the day?

From day 4. 4 days at the $179 day rate would be $716, but the weekly rate caps it at $711.

When is it cheaper to rent a Portable Air Compressor, #7 on the 28-day rate?

From day 18. At that point the week-and-day composition reaches the $2,132 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 Air Compressor, #7

See the listing →

Simon Equipment Rentals · Compressors - Air Compressors

Day: $179
Week: $711
28 days: $2,132

Daily stops winning on

day 4

4 days at the day rate would be $716. On the week rate it is $711.

Weekly stops winning on

day 18

18 days at the day rate would be $3,222. On the 28-day rate it is $2,132.

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 Air Compressor, #7, days 1 to 35
Days	At the day rate	On the ladder	Difference	Rate in play
1	$179	$179	—	day
2	$358	$358	—	day
3	$537	$537	—	day
4	$716	$711	you save $5	week
5	$895	$711	you save $184	week
6	$1,074	$711	you save $363	week
7	$1,253	$711	you save $542	week
8	$1,432	$890	you save $542	week
9	$1,611	$1,069	you save $542	week
10	$1,790	$1,248	you save $542	week
11	$1,969	$1,422	you save $547	week
12	$2,148	$1,422	you save $726	week
13	$2,327	$1,422	you save $905	week
14	$2,506	$1,422	you save $1,084	week
15	$2,685	$1,601	you save $1,084	week
16	$2,864	$1,780	you save $1,084	week
17	$3,043	$1,959	you save $1,084	week
18	$3,222	$2,132	you save $1,090	28-day
19	$3,401	$2,132	you save $1,269	28-day
20	$3,580	$2,132	you save $1,448	28-day
21	$3,759	$2,132	you save $1,627	28-day
22	$3,938	$2,132	you save $1,806	28-day
23	$4,117	$2,132	you save $1,985	28-day
24	$4,296	$2,132	you save $2,164	28-day
25	$4,475	$2,132	you save $2,343	28-day
26	$4,654	$2,132	you save $2,522	28-day
27	$4,833	$2,132	you save $2,701	28-day
28	$5,012	$2,132	you save $2,880	28-day
29	$5,191	$2,311	you save $2,880	day
30	$5,370	$2,490	you save $2,880	day
31	$5,549	$2,669	you save $2,880	day
32	$5,728	$2,843	you save $2,885	week
33	$5,907	$2,843	you save $3,064	week
34	$6,086	$2,843	you save $3,243	week
35	$6,265	$2,843	you save $3,422	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 · 18 days: $2,132
Rental protection (RPP): $319.80
Service fee: $213.20
Estimated total: $2,665

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.