When is it cheaper to rent a PROMAC GE2500 Generator by the week than by the day?

From day 4. 4 days at the $28 day rate would be $112, but the weekly rate caps it at $109.

When is it cheaper to rent a PROMAC GE2500 Generator on the 28-day rate?

From day 18. At that point the week-and-day composition reaches the $327 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.

PROMAC GE2500 Generator

See the listing →

brett boehm · Generators - Portable

Day: $28
Week: $109
28 days: $327

Daily stops winning on

day 4

4 days at the day rate would be $112. On the week rate it is $109.

Weekly stops winning on

day 18

18 days at the day rate would be $504. On the 28-day rate it is $327.

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 PROMAC GE2500 Generator, days 1 to 35
Days	At the day rate	On the ladder	Difference	Rate in play
1	$28	$28	—	day
2	$56	$56	—	day
3	$84	$84	—	day
4	$112	$109	you save $3	week
5	$140	$109	you save $31	week
6	$168	$109	you save $59	week
7	$196	$109	you save $87	week
8	$224	$137	you save $87	week
9	$252	$165	you save $87	week
10	$280	$193	you save $87	week
11	$308	$218	you save $90	week
12	$336	$218	you save $118	week
13	$364	$218	you save $146	week
14	$392	$218	you save $174	week
15	$420	$246	you save $174	week
16	$448	$274	you save $174	week
17	$476	$302	you save $174	week
18	$504	$327	you save $177	28-day
19	$532	$327	you save $205	28-day
20	$560	$327	you save $233	28-day
21	$588	$327	you save $261	28-day
22	$616	$327	you save $289	28-day
23	$644	$327	you save $317	28-day
24	$672	$327	you save $345	28-day
25	$700	$327	you save $373	28-day
26	$728	$327	you save $401	28-day
27	$756	$327	you save $429	28-day
28	$784	$327	you save $457	28-day
29	$812	$355	you save $457	day
30	$840	$383	you save $457	day
31	$868	$411	you save $457	day
32	$896	$436	you save $460	week
33	$924	$436	you save $488	week
34	$952	$436	you save $516	week
35	$980	$436	you save $544	week

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

What checkout will quote you

Our pricing service couldn’t be reached just now, so there’s no checkout figure to show. The rate table above is unaffected — it’s the operator’s published card.

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.