How long does it take you to knit a sweater?

If I had a dollar for every time someone asked me how long it takes me to make a sweater, well, I'd probably be able to buy yarn to make another sweater or two.

I decided to calculate it. I went through my projects page on Ravelry to see exactly how long.

Gems 09/01/12 11/04/14 794 2 years, 2 months, 3 days
Agnes 08/27/13 10/12/14 411 1 year, 1 month, 16 days
Lacey 04/01/13 04/15/14 379 1 year, 14 days
Eyelet 02/07/14 02/22/14 15 15 days
Dahlia 04/15/13 02/17/14 308 10 months, 2 days
February Lady 09/16/10 01/12/14 1214 3 years, 3 months, 27 days
Zooey 08/14/13 11/12/13 151 4 months, 29 days
Gemini 12/18/11 01/28/13 282 9 months, 9 days
Strobilus 01/16/12 11/06/13 660 1 year, 9 months, 21 days
Aidez 01/01/13 03/01/13 59 2 months
Raindrop 04/11/12 09/08/13 515 1 year, 4 months, 28 days
Runcorn 05/08/12 02/18/13 286 9 months, 10 days
Who Me? 11/17/12 01/25/13 69 2 months, 8 days
Girl Friday 09/05/12 12/24/12 110 3 months, 19 days
Lustro 08/16/12 12/23/12 129 4 months, 7 days
Nip/Tuck 04/01/12 09/22/12 174 5 months, 21 days
Raglan 07/27/12 08/12/12 16 16 days
Peacock 04/01/12 07/03/12 93 3 months, 2 days
Hey Teach 07/01/11 06/27/12 362 11 months, 26 days
Apres Surf 07/12/10 05/04/12 662 1 year, 9 months, 22 days
Tenney Park 01/22/12 04/27/12 96 3 months, 5 days
Tulip 05/21/11 04/10/12 325 10 months, 20 days
Leaf 08/11/11 04/05/12 238 7 months, 25 days
Central Park 11/29/11 02/25/12 88 2 months, 27 days
Tunic 02/07/11 05/01/11 83 2 months, 24 days
Vignette 01/01/12 03/21/12 80 2 months 20 days
Joanie 09/12/11 01/16/12 126 4 months, 4 days
Bulky 09/24/11 12/25/11 92 3 months, 1 day
Ruby 08/30/11 11/29/11 91 2 months, 30 days
Cardiff 09/17/11 11/15/11 59 1 month, 29 days
Lattice 11/05/10 07/07/11 244 8 months, 2 days
Ophelia 04/01/11 05/02/11 31 1 month, 1 day
Red 10/26/10 03/11/11 136 4 months, 13 days
Arbor 04/23/10 02/21/11 304 9 months, 29 days
Cadence 12/14/10 01/20/11 37 1 month, 6 days
Lia 10/25/10 01/11/11 78 2 months, 17 days
Trellis & Vine 04/01/10 12/14/10 257 8 months, 13 days
Shalom 09/16/10 10/22/10 36 1 month, 6 days
Betty 08/01/10 09/02/10 32 1 month, 1 day
Helleborus 08/20/10 10/09/10 50 1 month, 19 days
Egret 05/06/10 09/19/10 136 4 months, 13 days
Tappan Zee 05/01/10 07/18/10 78 2 months, 17 days
Gretel 04/04/10 05/20/10 46 1 month, 16 days
Seaweed 03/23/10 05/04/10 42 1 month, 11 days
Cocoon 08/25/09 03/18/10 205 6 months, 21 days
Freyja 02/12/10 03/13/10 29 1 month, 1 day
Scoop 01/09/10 02/10/10 32 1 month, 1 day
Amused 12/01/09 01/27/10 57 1 month, 27 days
A-line 10/17/09 12/29/09 73 2 months, 12 days
Camden 09/08/09 12/03/09 86 2 months, 25 days
Baby-Doll 05/01/09 08/07/09 98 3 months, 6 days
Shell 07/06/09 08/25/09 50 1 month, 19 days
Leaf Yoke 05/28/09 06/27/09 30 30 days
Owls 01/20/09 03/11/09 50 1 month, 19 days

Using the magic of spreadsheet formulas, I determined the average number of days to make a sweater is 188.5925925926. That averages out to just over 6 months. I always say, "It varies," and now you can see what I mean. One sweater took me over 3 years (mostly because I lost the project bag and didn't find it for quite some time) and two have taken just over 2 weeks (The Ravellenic Games challenges you to start a project when the Olympics start and finish before they end. I've succeed twice).