Conversions dashboard
Exact unit conversions, instantly.
Most unit conversions are won or lost on two things: the exact factor and a fast lookup table. CalcBold's Conversions tools give you both — every converter uses the internationally-defined factor (no drifting approximations), shows the formula, and lists the common values people actually search for. Free, instant, no signup.
- Live tools
16
- Searches / mo
16M+
- Top calc SV
2M+/month
- Sources
5+
Most-searched
Top conversions tools
- #1
Kg to Lbs Converter
Convert kilograms to pounds with the exact 2.20462 factor, a common-values table, and the formula shown.
2M+/month
- #2
Lbs to Kg Converter
Convert pounds to kilograms with the exact factor, a common-values table, and the formula shown.
2M+/month
- #3
Cm to Inches Converter
Convert centimeters to inches with the exact factor, a common-values table, and the formula shown.
1.5M+/month
Playground
Try Kg to Lbs Converter
Live, fully interactive — same engine as the standalone calc.
All tools
Every conversions calculator
Weight & Mass
3 tools- Kg to Lbs
Kg to Lbs Converter
Convert kilograms to pounds with the exact 2.20462 factor, a common-values table, and the formula shown.
2M+/month - Lbs to Kg
Lbs to Kg Converter
Convert pounds to kilograms with the exact factor, a common-values table, and the formula shown.
2M+/month - Grams to Ounces
Grams to Ounces Converter
Convert grams to ounces with the exact factor, a common-values table, and the formula shown.
673K+/month
Length & Distance
7 tools- Cm to Inches
Cm to Inches Converter
Convert centimeters to inches with the exact factor, a common-values table, and the formula shown.
1.5M+/month - Inches to Cm
Inches to Cm Converter
Convert inches to centimeters with the exact factor, a common-values table, and the formula shown.
1M+/month - Meters to Feet
Meters to Feet Converter
Convert meters to feet with the exact factor, a common-values table, and the formula shown.
1M+/month - Miles to Km
Miles to Km Converter
Convert miles to kilometers with the exact factor, a common-values table, and the formula shown.
1M+/month - Mm to Inches
Mm to Inches Converter
Convert millimeters to inches with the exact factor, a common-values table, and the formula shown.
823K+/month - Km to Miles
Km to Miles Converter
Convert kilometers to miles with the exact factor, a common-values table, and the formula shown.
823K+/month - Feet to Meters
Feet to Meters Converter
Convert feet to meters with the exact factor, a common-values table, and the formula shown.
550K+/month
Volume & Cooking
4 tools- Oz to Ml
Oz to Ml Converter
Convert fluid ounces to milliliters with the exact factor, a common-values table, and the formula shown.
823K+/month - Cups to Ounces
Cups to Ounces Converter
Convert cups to fluid ounces with the exact factor, a common-values table, and the formula shown.
550K+/month - Ml to Cups
Ml to Cups Converter
Convert milliliters to cups with the exact factor, a common-values table, and the formula shown.
450K+/month - Liters to Gallons
Liters to Gallons Converter
Convert liters to gallons with the exact factor, a common-values table, and the formula shown.
450K+/month
Temperature & Other
2 tools- Celsius to Fahrenheit
Celsius to Fahrenheit Converter
Convert Celsius to Fahrenheit with the exact factor, a common-values table, and the formula shown.
1M+/month - Fahrenheit to Celsius
Fahrenheit to Celsius Converter
Convert Fahrenheit to Celsius with the exact factor, a common-values table, and the formula shown.
1M+/month
Sources we cite
Where conversions numbers come from
NIST SP 811 (Guide for the Use of SI Units) · BIPM SI Brochure (9th ed., 2019) · ISO 80000 Quantities and Units · NIST Handbook 44 · 1959 international yard-and-pound agreement
Frequently Asked Questions
The most common questions we get about this calculator — each answer is kept under 60 words so you can scan.
Are these conversions exact or approximate?
Exact. Every converter uses the internationally-defined factor — for weight, 1 lb = 0.45359237 kg by the 1959 yard-and-pound agreement; for length, 1 inch = 2.54 cm exactly. We carry full precision internally and only round the displayed result, so the math never drifts the way the taught shortcuts (like '1 kg = 2.2 lb') do.Why a dedicated page per conversion instead of one converter?
Because the common-values table is the point. A dedicated kg-to-lbs page can show the 20 values people actually look up (10 kg, 44 kg, 70 kg…) plus the formula and the history — a generic converter can't. We keep the all-in-one unit converter too, for one-off pairs.Do you support metric and imperial both ways?
Yes. Each converter handles its pair in both directions (the page explains the reverse factor), and the all-in-one unit converter covers length, weight, volume, temperature, area, and time across metric and imperial systems.Is anything stored when I convert?
No. All conversion math runs in your browser. There are no accounts, no logging of the values you enter, and no trackers inside the converter. Closing the tab erases everything.
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