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.
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
~11.68 in
The length of a human foot.
kyynärä
2
~593.76 mm
~1.94 ft
The distance from the elbow to the fingertips. The usual unit on measuring everyday lengths. Metrinen kyynärä = 500 mm.
syli
6
~1.8 m
~5.9 ft
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
~700.78 ft
The furrow's length on field.
virsta
600
~1068.84 m
~0.66 mi
2672 m (Swedish) 1068.84 m (Finnish). Related to the Russian verst.
peninkulma (old)
3000
~5344.2 m
~3.32 mi
Before year 1600 5 virsta; after 1600 10 virsta. The distance a barking dog can be heard in still air.
peninkulma (new)
6000
~10.6884 km
~6.64 mi
Before year 1600 5 virsta; after 1600 10 virsta. The distance a barking dog can be heard in still air.
päivämatka
12,000
~20 km
~12.42 mi
The distance of one day's travel.
Maritime units
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
Area
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.
Volume
Dry measure
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.
Liquid 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.
Mass
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
Miscellaneous
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 a reindeer can travel before needing to stop to urinate. Today used to describe something that is at a very obscure distance away.