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In Finland, approximate units of measure were derived from natural actions or objects such body parts, later standardised for the purpose of commerce. Some Swedish and, later, Russian, units were also used.

The measurements were first standardized by law in 1665 and were revised in 1735. Before this, measurements often varied between towns. The units used in town of Porvoo, for example, were unusually large; the proverb mitata Porvoon mitalla (to measure in Porvoo units) means to measure in excess or generously.

Certain units were standardized to the metric system in 1861, and Finland fully converted to metric in 1880.

Contents 1 Length 1.1 Maritime units 2 Area 3 Volume 3.1 Dry measure 3.2 Liquid measure 4 Mass 5 Miscellaneous 6 See also 7 External link

Table of length units
Unit	Relative value	Metric value	Imperial value	Notes
linja	1/144	~2.06 mm		The width of barleycorn.
tuuma	1/12	~24.74 mm		The width of thumb. Metrinen tuuma = 25 mm.
vaaksa	1/2	~148.44 mm		The distance between the tips of little finger and thumb, when the fingers are fully extended. Today defined as 150 mm.
jalka	1	~296.9 mm		The length of a human foot.
kyynärä	2	~593.76 mm		The distance from the elbow to the fingertips. The usual unit on measuring everyday lengths. Metrinen kyynärä = 500 mm.
syli	6	~1.8 m		Fathom; the distance between the fingertips of both hands when the arms are raised horizontally to the sides. In maritime, syli is 1/1000th of nautical mile (1.852 m).
vakomitta	120	~213.6 m		The furrow's length on field.
virsta	600	~1068.84 m		2672 m (Swedish) 1068.84 m (Finnish).
peninkulma (old)	3000	~5344.2 m		Before 1600 5 virsta; after 1600 10 virsta. The distance a barking dog can be heard in still air.
peninkulma (new)	6000	~10.6884 km		Before 1600 5 virsta; after 1600 10 virsta. The distance a barking dog can be heard in still air.
päivämatka	12,000	~20 km		The distance of one day's travel.

• meripeninkulma – 1852 m. Same as nautical mile. One angular minute at equator.
• kaapelinmitta – 185.2 m. 1/10 of a nautical mile.
• syli – 1.852 m. 1/1000 of a nautical mile. Seldom used.
• solmu – nautical miles per hour. Speed unit.

Obsolete:

• merisekunti* – 30.8666 m. 1/60 of nautical mile
• meritertia* – 0.51444 m. 1/3600 of nautical mile

Table of area units
Unit	Relative value	Metric value	Imperial value	Notes
kannunala		~88.15 m²		1000 square jalka.
kapanala		~154 m²		1/32 of tynnyrinala. The area (of field) that could be sown with one bushel of grain.
panninala		~2464 m²		16 kapanala, 1/2 of tynnyrinala. The area (of field) that could be sown with one panni of grain.
tynnyrinala		~4936.5 m²		The area (of field) that could be sown with one barrel of grain.
äyrityisenmaa	1			3,926 square kyynärä. The area which grows grain worth of one äyrityinen for taxation.
äyrinmaa	3			11,777 square kyynärä. The area which grows grain worth of one äyri for taxation.
penninginmaa	125			490,790 square kyynärä. The area which grows grain worth of one penninki for taxation.

Table of volume (dry) units
Unit	Relative value	Metric value	Imperial value	Notes
jumpru	1/16	~8.18 ml		From Swedish jungfru, virgin. Also for liquids.
kortteli	1/4	~327.15 ml		Used for both length (14.845 cm, same as vaaksa) and volume. Name derives from Swedish kvartdel, meaning "quarter". As unit of length 1/4 of kyynärä.
tuoppi	1	~1.3274 L		Literally tankard. Also for liquids.
kannu	2	~2.6172 L		Also called pikkukappa (exactly 2.5 L).
kappa	4	~5.4961 L		Still in use (as exactly 5 liters) as kappa or isokappa at market places to measure potatoes.
nelikko	32	~43.986 L		Used for dry measure.
panni	64	~87.96 L		Used for dry measure.
tynnyri	128	~175 L		Barrel for dry measure.
lästi	1536	~2110 L		Used for dry measure.

Table of volume (liquid) units
Unit	Relative value	Metric value	Imperial value	Notes
jumpru	1/16	~8.18 ml		From Swedish jungfru, virgin.
kortteli	1/4	~327.15 ml		Used for both length (14.845 cm, same as vaaksa) and volume. Name derives from Swedish kvartdel, meaning "quarter". As unit of length 1/4 of kyynärä.
tuoppi	1	~1.3274 L		Literally tankard. Used for liquids.
kannu	2	~2.6172 L		Also called pikkukappa (exactly 2.5 L).
kappa	4	~5.4961 L		Also for dry substances.
ankkuri	30	~39.26 L		Used for liquid measure.
tynnyri	96	~125.6 L		Barrel for liquid measure.
lästi	1152	~1507 L		Used for liquid measure.

Table of mass units
Unit	Relative value	Metric value	Imperial value	Notes
luoti	1/16	~13.95 g		The weight of a musket ball.
unssi	1/8	~27.9 g
markka	1	~213.8 g		Name of the Finnish monetary unit 1861-2002
naula	2	~425.6 g		metrinen naula = 500 g
leiviskä	40	~8.5004 kg		metrinen leiviskä = 10 kg
sentneri	200	~42.56 kg		1 Senttaali = 200 metrinen naula = 100 kg.
kippunta	800	~170 kg

• askel (pace) Roughly one meter for an adult male - a rough but convenient way to measure distances while walking.
• kivenheitto (Throw of a rock) – 100 kyynärä (approx 50 m). Today to describe something to be very near.
• poronkusema – (approximately 7.5 km). A Lappish measurement of distance; the distance between the reindeer needs to urinate. Today used to describe something that is at a very obscure distance away. Poronkusemaa kuukaudessa furlongs per fortnight
• tusina 12
• toltti 12 (lumber)
• tiu 20 (eggs)
• buntta 20 (matchboxes)
• kerpo 31 (lampreys; 30 as a bunch and one for tying)
• krossi 144 (pencils)
• kiihtelys 40 (squirrel pelts)
• riisi 500 (paper sheets)
• tonni 1000 (usually refers to 1000 kg, but can refer also anything of 1000, especially money)
• motti 1 m³ (firewood or waste paper)
• valovuosi (light-year) to describe something is extremely distant or unaccessible

• Weights and measures
• Historical weights and measures
• SI

• Scandinavian units