Metric to Imperial Conversion Table: Exact Formulas & Printable Reference
Close enough is not close enough when a conversion factor has to be exact. Rounding 2.20462 to 2.2 might slide for luggage, but it compounds in engineering, medicine, and trade — and nobody wants to discover the error in the finished product. Most online converters hide the math, which means you cannot reuse the factor, cannot check it, and cannot teach it. This printable metric-to-imperial conversion table shows the exact formula for every dimension instead: fourteen rows covering length, distance, weight, volume, temperature, area, and speed, each with the metric unit, its imperial equivalent, and the precise multiplier or equation to convert it yourself. Consult the live reference table below whenever you need the real factor — not the rounded guess — or print the sheet below and keep it where the numbers matter.
Quick-Reference Table
The full data from this cheat sheet, right on the page.
| Dimension | Metric Unit | Imperial Equivalent | Exact Formula |
|---|---|---|---|
| Length | 1 millimeter (mm) | 0.03937 inches (in) | in = mm × 0.03937 |
| Length | 1 centimeter (cm) | 0.3937 inches (in) | in = cm × 0.3937 |
| Length | 1 meter (m) | 3.28084 feet (ft) | ft = m × 3.28084 |
| Distance | 1 kilometer (km) | 0.621371 miles (mi) | mi = km × 0.621371 |
| Weight | 1 gram (g) | 0.035274 ounces (oz) | oz = g × 0.035274 |
| Weight | 1 kilogram (kg) | 2.20462 pounds (lb) | lb = kg × 2.20462 |
| Volume | 1 milliliter (ml) | 0.033814 fl ounces | fl oz = ml × 0.033814 |
| Volume | 1 liter (L) | 0.264172 US gallons (gal) | gal = L × 0.264172 |
| Temperature | 0°C (freezing point) | 32°F | °F = (°C × 9/5) + 32 |
| Temperature | 100°C (boiling point) | 212°F | °F = (°C × 9/5) + 32 |
| Area | 1 square meter (m²) | 10.7639 square feet | ft² = m² × 10.7639 |
| Area | 1 hectare (ha) | 2.47105 acres | ac = ha × 2.47105 |
| Speed | 1 km/h | 0.621371 mph | mph = km/h × 0.621371 |
| Speed | 1 meter/second | 2.23694 mph | mph = m/s × 2.23694 |
How to Use This Chart
Pin this chart where you work: it packs 14 entries and 4 columns (Dimension, Metric Unit, Imperial Equivalent, Exact Formula) into one printable page, built for quick lookups.
Scan down the Dimension column to your item, then read across for Metric Unit, Imperial Equivalent, Exact Formula.
Example: for Length, the chart gives Metric Unit of 1 millimeter (mm).
- Compare values down a single column to spot the pattern before you commit to a choice.
- When two rows look close, the last column usually breaks the tie.
- Print it once and keep it where you work — that's the whole point of a cheat sheet.
💡 Quick Tips
Go Metric to Imperial, Not the Other Way: These factors are tuned for metric-to-imperial; divide by the same factor to reverse the direction.
Keep Four Decimal Places: Rounding 2.20462 to 2.2 is fine for luggage, not for lab work — use the full factor for precision.
Temperature Needs a Formula: Only temperature uses an equation instead of multiplication — it is the one row worth memorizing.
Frequently Asked Questions
How do I convert Celsius to Fahrenheit exactly?
Multiply the Celsius temperature by 9/5 (1.8), then add 32. So 25°C becomes 45 plus 32, or 77°F. To go back, subtract 32 first, then multiply by 5/9.
What is the exact factor for kilograms to pounds?
Multiply kilograms by 2.20462 — that is the exact internationally defined factor. Four decimal places are enough for anything outside a calibration lab.
How do I reverse a metric-to-imperial conversion?
Divide by the same factor instead of multiplying. Since 1 kg equals 2.20462 lb, one pound equals 1 divided by 2.20462 kg, or about 0.4536 kg.
Printable Sheet Preview
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Download Your Free Printable Sheet
Download the printable PDF below. It is the same sheet shown in the preview above, ready to print on US Letter or A4 — open it and choose Print, with Scale set to Fit to Page.
💡 Pro Printing Tip: In your printer settings, set Scale to “Fit to Printable Area” and enable “Background Graphics” for color headers.