When is it cheaper to rent a Kubota BX1880 tractor by the week than by the day?

From day 4. 4 days at the $165 day rate would be $660, but the weekly rate caps it at $650.

When is it cheaper to rent a Kubota BX1880 tractor on the 28-day rate?

From day 18. At that point the week-and-day composition reaches the $1,800 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.

Kubota BX1880 tractor

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Brian Siembor · Tractors - Compact

Day: $165
Week: $650
28 days: $1,800

Daily stops winning on

day 4

4 days at the day rate would be $660. On the week rate it is $650.

Weekly stops winning on

day 18

18 days at the day rate would be $2,970. On the 28-day rate it is $1,800.

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 Kubota BX1880 tractor, days 1 to 35
Days	At the day rate	On the ladder	Difference	Rate in play
1	$165	$165	—	day
2	$330	$330	—	day
3	$495	$495	—	day
4	$660	$650	you save $10	week
5	$825	$650	you save $175	week
6	$990	$650	you save $340	week
7	$1,155	$650	you save $505	week
8	$1,320	$815	you save $505	week
9	$1,485	$980	you save $505	week
10	$1,650	$1,145	you save $505	week
11	$1,815	$1,300	you save $515	week
12	$1,980	$1,300	you save $680	week
13	$2,145	$1,300	you save $845	week
14	$2,310	$1,300	you save $1,010	week
15	$2,475	$1,465	you save $1,010	week
16	$2,640	$1,630	you save $1,010	week
17	$2,805	$1,795	you save $1,010	week
18	$2,970	$1,800	you save $1,170	28-day
19	$3,135	$1,800	you save $1,335	28-day
20	$3,300	$1,800	you save $1,500	28-day
21	$3,465	$1,800	you save $1,665	28-day
22	$3,630	$1,800	you save $1,830	28-day
23	$3,795	$1,800	you save $1,995	28-day
24	$3,960	$1,800	you save $2,160	28-day
25	$4,125	$1,800	you save $2,325	28-day
26	$4,290	$1,800	you save $2,490	28-day
27	$4,455	$1,800	you save $2,655	28-day
28	$4,620	$1,800	you save $2,820	28-day
29	$4,785	$1,965	you save $2,820	day
30	$4,950	$2,130	you save $2,820	day
31	$5,115	$2,295	you save $2,820	day
32	$5,280	$2,450	you save $2,830	week
33	$5,445	$2,450	you save $2,995	week
34	$5,610	$2,450	you save $3,160	week
35	$5,775	$2,450	you save $3,325	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: $1,800
Rental protection (RPP): $270
Service fee: $180
Estimated total: $2,250

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.