Metric to Imperial Converter – Fast & Accurate

Metric to Imperial Converter

Convert between metric and imperial units instantly with precision

3.281 ft

Quick Conversions

1 m = 3.281 ft
1 km = 0.621 mi
1 cm = 0.394 in
100 m = 109.4 yd
5 km = 3.107 mi
10 mm = 0.394 in
2.205 lb

Quick Conversions

1 kg = 2.205 lb
1 g = 0.035 oz
100 g = 3.527 oz
1 t = 1.102 ton
50 kg = 110.2 lb
500 g = 1.102 lb
32 °F

Quick Conversions

0 °C = 32 °F
100 °C = 212 °F
20 °C = 68 °F
30 °C = 86 °F
-40 °C = -40 °F
37 °C = 98.6 °F
0.264 gal

Quick Conversions

1 L = 0.264 gal
1 L = 2.113 pt
500 ml = 16.9 fl oz
1 L = 1.057 qt
4 L = 1.057 gal
250 ml = 8.45 fl oz
10.764 ft²

Quick Conversions

1 m² = 10.764 ft²
1 ha = 2.471 acre
1 km² = 0.386 mi²
100 m² = 1076 ft²
1 m² = 1.196 yd²
10 ha = 24.71 acre
62.137 mph

Quick Conversions

100 km/h = 62.1 mph
1 m/s = 3.281 ft/s
50 km/h = 31.1 mph
10 m/s = 22.4 mph
120 km/h = 74.6 mph
80 km/h = 49.7 mph

Popular Metric to Imperial Conversions

1 meter
⬇
3.281 feet
1 kilogram
⬇
2.205 pounds
100°C
⬇
212°F
1 kilometer
⬇
0.621 miles
1 liter
⬇
0.264 gallons
1 hectare
⬇
2.471 acres

Conversion Formulas & Examples

Length Conversion

Meters to Feet: ft = m × 3.28084

Kilometers to Miles: mi = km × 0.621371

Centimeters to Inches: in = cm × 0.393701

Millimeters to Inches: in = mm × 0.0393701

Example: Convert 5 meters to feet

Step 1: Take the value in meters: 5 m

Step 2: Multiply by the conversion factor: 5 × 3.28084

Step 3: Result: 16.404 feet

Weight / Mass Conversion

Kilograms to Pounds: lb = kg × 2.20462

Grams to Ounces: oz = g × 0.035274

Tonnes to US Tons: ton = t × 1.10231

Example: Convert 10 kilograms to pounds

Step 1: Take the value in kilograms: 10 kg

Step 2: Multiply by the conversion factor: 10 × 2.20462

Step 3: Result: 22.046 pounds

Temperature Conversion

Celsius to Fahrenheit: °F = (°C × 1.8) + 32

Fahrenheit to Celsius: °C = (°F - 32) ÷ 1.8

Kelvin to Fahrenheit: °F = (K - 273.15) × 1.8 + 32

Example: Convert 25°C to Fahrenheit

Step 1: Take the Celsius temperature: 25°C

Step 2: Multiply by 1.8: 25 × 1.8 = 45

Step 3: Add 32: 45 + 32 = 77°F

Volume Conversion

Liters to Gallons: gal = L × 0.264172

Milliliters to Fluid Ounces: fl oz = ml × 0.033814

Cubic Meters to Cubic Feet: ft³ = m³ × 35.3147

Area Conversion

Square Meters to Square Feet: ft² = m² × 10.7639

Hectares to Acres: acre = ha × 2.47105

Square Kilometers to Square Miles: mi² = km² × 0.386102

Speed Conversion

Kilometers/hour to Miles/hour: mph = km/h × 0.621371

Meters/second to Feet/second: ft/s = m/s × 3.28084

Comprehensive Conversion Tables

Length Conversion Table

Metric Unit Inches (in) Feet (ft) Yards (yd) Miles (mi)
1 millimeter (mm) 0.03937 0.003281 0.001094 0.0000006214
1 centimeter (cm) 0.3937 0.03281 0.01094 0.000006214
1 meter (m) 39.37 3.281 1.094 0.0006214
1 kilometer (km) 39,370 3,281 1,094 0.6214

Weight / Mass Conversion Table

Metric Unit Ounces (oz) Pounds (lb) US Tons (ton)
1 milligram (mg) 0.000035 0.0000022 0.0000000011
1 gram (g) 0.03527 0.002205 0.0000011
1 kilogram (kg) 35.274 2.205 0.001102
1 tonne (t) 35,274 2,205 1.102

Temperature Reference Points

Description Celsius (°C) Fahrenheit (°F)
Absolute Zero -273.15 -459.67
Water Freezing Point 0 32
Room Temperature 20-22 68-72
Human Body Temperature 37 98.6
Water Boiling Point 100 212

Volume Conversion Table

Metric Unit Fluid Ounces (fl oz) Pints (pt) Quarts (qt) Gallons (gal)
1 milliliter (ml) 0.03381 0.002113 0.001057 0.0002642
1 liter (L) 33.814 2.113 1.057 0.2642
1 cubic meter (m³) 33,814 2,113 1,057 264.2

Frequently Asked Questions

Why do we need to convert between metric and imperial systems?
Different countries use different measurement systems. While most of the world uses the metric system, the United States primarily uses the imperial system. Converting between these systems is necessary for international trade, scientific research, travel, and communication across borders.
What is the easiest way to convert meters to feet?
The simplest method is to multiply the number of meters by 3.281. For a quick approximation, you can multiply by 3, which gives you a result within 10% accuracy. For example, 5 meters is approximately 15 feet (exact: 16.404 feet).
How accurate do my conversions need to be?
The required accuracy depends on your application. For everyday use, rounding to 2-3 decimal places is usually sufficient. Scientific work or engineering applications may require more precision. This converter provides results accurate to several decimal places for all your needs.
What is the formula for converting Celsius to Fahrenheit?
The formula is: °F = (°C × 1.8) + 32. First multiply the Celsius temperature by 1.8, then add 32 to get Fahrenheit. For example, 25°C × 1.8 = 45, then 45 + 32 = 77°F.
How many pounds are in a kilogram?
One kilogram equals approximately 2.205 pounds. Conversely, one pound equals approximately 0.4536 kilograms. For quick mental math, you can multiply kilograms by 2 and add 10% for a close approximation.
Are imperial and US customary units the same?
They are similar but not identical. While units like inches, feet, and pounds are the same, volume measurements differ. For example, a US gallon (3.785 liters) is smaller than an imperial gallon (4.546 liters). This converter uses US customary units.
What is the relationship between square meters and square feet?
One square meter equals approximately 10.764 square feet. This is the square of the linear conversion (3.281² = 10.764). To convert area, multiply the conversion factor by itself.
How do I convert kilometers per hour to miles per hour?
Multiply the speed in km/h by 0.621371 to get mph. For example, 100 km/h × 0.621371 = 62.137 mph. A quick approximation is to multiply by 0.6 (or divide by 1.6).
Can I convert between metric and imperial using a single universal factor?
No, each type of measurement (length, weight, temperature, volume) requires its own specific conversion factor. Additionally, temperature conversions involve both multiplication and addition, not just a simple multiplication factor.
What countries still use the imperial system?
The United States is the primary country using the imperial system (technically US customary units). Liberia and Myanmar also have not fully adopted the metric system. The United Kingdom uses a mix of both systems, though officially metric since 1965.

Additional Unit Conversions

Beyond the core conversions above, you might also need to convert between these related units:

From Metric Length Units

  • Millimeters (mm): to inches, feet, yards, miles
  • Centimeters (cm): to inches, feet, yards, miles
  • Meters (m): to inches, feet, yards, miles
  • Kilometers (km): to inches, feet, yards, miles, nautical miles

From Metric Weight Units

  • Milligrams (mg): to ounces, pounds, grains
  • Grams (g): to ounces, pounds
  • Kilograms (kg): to ounces, pounds, stones, tons
  • Tonnes (t): to pounds, US tons, UK tons (long tons)

From Metric Volume Units

  • Milliliters (ml): to fluid ounces, teaspoons, tablespoons
  • Liters (L): to fluid ounces, cups, pints, quarts, gallons
  • Cubic meters (m³): to cubic feet, cubic yards, gallons

Cooking & Baking Conversions

Metric Imperial/US
5 ml 1 teaspoon (tsp)
15 ml 1 tablespoon (tbsp)
240 ml 1 cup
473 ml 1 pint
28.35 g 1 ounce
454 g 1 pound

When to Use Each System

Metric System Applications

The metric system is used worldwide in scientific research, international trade, and is the official measurement system in most countries. It excels in applications requiring precision and easy unit conversion due to its base-10 structure. Common applications include laboratory measurements, medical dosages, automotive specifications outside the US, and international shipping.

Imperial System Applications

The imperial system remains dominant in the United States for everyday measurements, construction, real estate, and personal weight/height measurements. It’s commonly used in US cooking recipes, weather forecasts, road signs, and sports. Many Americans find imperial units more intuitive for daily life due to cultural familiarity.

Conversion Tips for Travelers

Distance: When driving abroad, remember speed limits in km/h are roughly 60% higher than mph (100 km/h ≈ 60 mph)

Temperature: A comfortable room temperature is around 20-22°C (68-72°F)

Weight: Airport luggage limits of 23 kg equal about 50 pounds

Fuel: 1 gallon equals approximately 3.785 liters

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