Solverly

kg to lb Converter (Kilograms ↔ Pounds)

The Kilograms to Pounds converter gives you an immediate, accurate translation from kilograms to pounds. It’s handy for reading nutrition labels, logging strength training results, comparing baggage limits, or aligning product specs that switch between metric and imperial units.

Type a value once and the tool handles the math—no formulas to remember—so you can double-check weights, plan purchases, and communicate measurements with confidence. The goal is simple, reliable unit conversion that keeps your tracking, shipping, or fitness notes consistent and easy to share.

Convert kilograms (kg) and pounds (lb) with instant accuracy, rounding options, and shareable results.

Type kilograms (kg) or pounds (lb) to convert (live rounding & shareable link).

Enter either kilograms or pounds

We convert using exact definitions: 1 lb = 0.45359237 kg and 1 kg = 2.2046226218 lb. Pick rounding based on context—shipping labels, gym logs, or clinical notes. Edit either field; we detect which side you’re using.
Quick presets

Kilograms ↔ Pounds Results

Kilograms
70
Pounds
154.32
Ratio
1 kg = 2.204623 lb • 1 lb = 0.45359237 kg
1 kilogram = 2.2046226218 pounds (exact by definition of the international pound).
Choose rounding if you need whole-pound values for everyday estimates.

How we convert kilograms and pounds

Formulas, steps, and assumptions

Formulas: lb = kg × 2.2046226218; kg = lb × 0.45359237.

Steps: Enter either side ➝ choose rounding ➝ read the converted value instantly ➝ copy a link with the inputs.

Assumptions: We use the exact international avoirdupois pound. No unit variability by region.

Limitations: Rounding is for presentation only; underlying math uses full precision.

Results interpretation

  • Whole-number rounding (0 dp): convenient for shipping labels and gym plates.
  • 1–2 decimals: common for health, nutrition, or baggage tags.
  • 3–4 decimals: technical logs or science notes where small differences matter.

Use cases & examples

Example 1: 70 kg → 154.3236 lb (2 dp → 154.32 lb).

Example 2: 185 lb → 83.9146 kg (1 dp → 83.9 kg).

Example 3: 10.5 kg → 23.148 lb (0 dp → 23 lb).

kg ↔ lb — FAQ

What is the exact kg to lb conversion?

1 kilogram equals 2.2046226218 pounds exactly. The inverse is 1 pound equals 0.45359237 kilograms.

How many decimals should I use?

Use 0 for quick labels, 1–2 for everyday logs, and 3–4 when small differences matter. You can switch anytime.

Can I type in pounds instead of kilograms?

Yes—edit either field. We detect which side you changed and convert in that direction.

Do you round before or after converting?

We always convert with full precision and then apply your chosen rounding for display only.

Are stones supported?

Not on this page. For UK units, we’ll add a stones converter soon (st ↔ kg, lb).

Does this work on mobile?

Yes. Everything recalculates live as you type, and you can copy a shareable link with your inputs.

Kilograms to pounds: precise conversion and practical rounding

We keep conversions straightforward and accurate. Kilograms are SI mass units; pounds are widely used in the U.S. and a few other contexts. Our approach balances exact math with readable rounding so results fit gym logging, shipping, and health tracking.

Why two constants exist (and when to use them)

The pound is defined exactly as 0.45359237 kg. That fixes the inverse constant at 2.2046226218 lb per kg. We always convert using those exact values and then apply any presentation rounding you select.

Picking the right number of decimals

Choose 0 for quick head math and labels, 1–2 for nutrition or fitness, and 3–4 for technical notes. You can change rounding at any time—no need to re-enter values.