Countries that Don't Use the Metric System 2025

Level of Metric Adoption

Almost complete

Complete, but retains a few non-metric units

Partially complete

Partially complete, but stalled

Partially complete, retains formal use of traditional units

Level of Metric Adoption

12
4
5
3
Country
Level of Metric Adoption
China Flag
ChinaAlmost complete
Indonesia Flag
IndonesiaAlmost complete
Philippines Flag
PhilippinesAlmost complete
Thailand Flag
ThailandAlmost complete
Malaysia Flag
MalaysiaAlmost complete
Peru Flag
PeruAlmost complete
Sri Lanka Flag
Sri LankaAlmost complete
Taiwan Flag
TaiwanAlmost complete
Hong Kong Flag
Hong KongAlmost complete
Singapore Flag
SingaporeAlmost complete
Ireland Flag
IrelandAlmost complete
Macau Flag
MacauAlmost complete
Brazil Flag
BrazilComplete, but retains a few non-metric units
Mexico Flag
MexicoComplete, but retains a few non-metric units
Japan Flag
JapanComplete, but retains a few non-metric units
South Korea Flag
South KoreaComplete, but retains a few non-metric units
Sweden Flag
SwedenComplete, but retains a few non-metric units
Myanmar Flag
MyanmarPartially complete
Liberia Flag
LiberiaPartially complete
Jamaica Flag
JamaicaPartially complete
United States Flag
United StatesPartially complete, but stalled
United Kingdom Flag
United KingdomPartially complete, but stalled
Canada Flag
CanadaPartially complete, but stalled
Trinidad and Tobago Flag
Trinidad and TobagoPartially complete, but stalled
North Korea Flag
North KoreaPartially complete, retains formal use of traditional units
  • Countries not listed below can be considered wholly metric.