How many tonnes are in 1 kilogram?

1 kg equals 0.001 t. This is an exact conversion factor defined by NIST.

How do I convert kilograms to tonnes?

Multiply the value in kg by the conversion factor. For example, 10 kg = 0.01 t. Use our calculator above for instant results.

Is the kilograms to tonnes conversion exact?

Yes, this conversion is mathematically exact based on the international definition of these units (NIST SP 811).

Can I convert kilograms to tonnes offline?

Yes! OmniConvert runs entirely in your browser — no internet connection needed after the page loads. Your data never leaves your device, ensuring complete privacy.

What is the difference between kilograms and tonnes?

Kilograms (kg) and Tonnes (t) are both units of mass but belong to different measurement systems. 1 kg = 0.001 t. Use the converter above to switch between them instantly.

Kilograms to Tonnes (kg → t) — Free Online Converter

kg → t Reference Table

kg	t
0.001 kg	0.000001 t
0.002 kg	0.000002 t
0.003 kg	0.000003 t
0.004 kg	0.000004 t
0.005 kg	0.000005 t
0.006 kg	0.000006 t
0.007 kg	0.000007 t
0.008 kg	0.000008 t
0.009 kg	0.000009 t
0.01 kg	0.00001 t
0.02 kg	0.00002 t
0.03 kg	0.00003 t
0.04 kg	0.00004 t
0.05 kg	0.00005 t
0.06 kg	0.00006 t
0.07 kg	0.00007 t
0.08 kg	0.00008 t
0.09 kg	0.00009 t
0.1 kg	0.0001 t
0.2 kg	0.0002 t
0.3 kg	0.0003 t
0.4 kg	0.0004 t
0.5 kg	0.0005 t
0.6 kg	0.0006 t
0.7 kg	0.0007 t
0.8 kg	0.0008 t
0.9 kg	0.0009 t
1 kg	0.001 t
1.5 kg	0.0015 t
2 kg	0.002 t
2.5 kg	0.0025 t
3 kg	0.003 t
3.5 kg	0.0035 t
4 kg	0.004 t
4.5 kg	0.0045 t
5 kg	0.005 t
5.5 kg	0.0055 t
6 kg	0.006 t
6.5 kg	0.0065 t
7 kg	0.007 t
7.5 kg	0.0075 t
8 kg	0.008 t
8.5 kg	0.0085 t
9 kg	0.009 t
9.5 kg	0.0095 t
10 kg	0.01 t
11 kg	0.011 t
12 kg	0.012 t
13 kg	0.013 t
14 kg	0.014 t
15 kg	0.015 t
16 kg	0.016 t
17 kg	0.017 t
18 kg	0.018 t
19 kg	0.019 t
20 kg	0.02 t
25 kg	0.025 t
30 kg	0.03 t
35 kg	0.035 t
40 kg	0.04 t
45 kg	0.045 t
50 kg	0.05 t
55 kg	0.055 t
60 kg	0.06 t
65 kg	0.065 t
70 kg	0.07 t
75 kg	0.075 t
80 kg	0.08 t
85 kg	0.085 t
90 kg	0.09 t
95 kg	0.095 t
100 kg	0.1 t
120 kg	0.12 t
125 kg	0.125 t
130 kg	0.13 t
140 kg	0.14 t
150 kg	0.15 t
160 kg	0.16 t
175 kg	0.175 t
180 kg	0.18 t
200 kg	0.2 t
225 kg	0.225 t
250 kg	0.25 t
275 kg	0.275 t
300 kg	0.3 t
350 kg	0.35 t
400 kg	0.4 t
450 kg	0.45 t
500 kg	0.5 t
600 kg	0.6 t
700 kg	0.7 t
750 kg	0.75 t
800 kg	0.8 t
900 kg	0.9 t
1000 kg	1 t
1200 kg	1.2 t
1250 kg	1.25 t
1500 kg	1.5 t
1750 kg	1.75 t
2000 kg	2 t
2500 kg	2.5 t
3000 kg	3 t
4000 kg	4 t
4500 kg	4.5 t
5000 kg	5 t
6000 kg	6 t
7000 kg	7 t
7500 kg	7.5 t
8000 kg	8 t
9000 kg	9 t
10000 kg	10 t
15000 kg	15 t
20000 kg	20 t
25000 kg	25 t
50000 kg	50 t
75000 kg	75 t
100000 kg	100 t

Values based on NIST SP 811 conversion factors

Why Convert Kilograms to Tonnes?

Converting between kilograms (kg) and tonnes (t) is one of the most common mass conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert kg to t saves time and prevents errors.

Mass conversions from kg to t are vital in culinary arts, logistics, and pharmaceutical industries. Professional chefs and home bakers rely on precise ingredient conversions to replicate international recipes — a slight variation in flour or leavening agents can ruin the texture of a dish. In global shipping, freight costs and vehicle load limits depend on accurate weight calculations to ensure safety and compliance with transport regulations. Furthermore, in healthcare and chemistry, dosage calculations must be exact; confusing mass units can lead to ineffective treatments or dangerous overdoses. Reliable mass conversion ensures consistency across borders and disciplines.

How to Convert Kilograms to Tonnes

To convert kilograms to tonnes, use the following formula:

t = kg × 0.001

Example: 1 kg = 0.001 t

For example, 5 kg = 0.005 t, 10 kg = 0.01 t, and 100 kg = 0.1 t. For larger values, 1000 kg = 1 t. Conversely, 1 t = 1000 kg. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Use Cases

One metric tonne (1000 kg): 1000 kg = 1 t
Average car weight: 1500 kg = 1.5 t
Large SUV weight: 2500 kg = 2.5 t
Grand piano weight: 500 kg = 0.5 t

Common Mistakes to Avoid

Mass vs Weight: confusing mass (kg) with weight/force (Newtons or lbs-force).
Ton variations: mixing up Short Ton (US), Long Ton (UK), and Metric Tonne.
Ounce confusion: confusing Ounces (weight) with Fluid Ounces (volume).

Pro Tips

Kitchen scales: Use the 'Tare' button to zero out container weight.
Water weight: 1 Liter of water weighs exactly 1 kg (at 4°C). Useful benchmark.
Conversion rule: To get kg from lbs, divide by 2.2 (approx halve it).

What is a Kilogram?

The kilogram (kg) is the base unit of mass in the International System of Units (SI). Originally defined by a platinum-iridium artifact, since 2019 it is defined by the Planck constant (h) set to 6.62607015×10⁻³⁴ J⋅s.

Kilograms are the global standard for measuring mass and weight in science, commerce, and daily life (body weight, groceries). Used nearly everywhere except the US.

What is a Tonne?

The tonne (t), or metric ton, is a non-SI unit accepted for use with SI, equal to 1,000 kilograms (approximately 2,204.6 pounds).

Tonnes are used worldwide for measuring heavy loads, such as cargo shipping, vehicle weights, and industrial production (steel, grain, coal).

Kilograms → Tonnes

Kilograms to Tonnes Formula