One tonne-force is exactly 1,000,000 grams-force, so converting tonnes-force to grams-force is a single multiplication. Enter any figure and the result appears as you type — the arithmetic runs in your browser, so nothing is sent anywhere.
The force of gravity on one metric tonne, used in press and crane ratings. The weight of one gram at standard gravity, used for keyboard switches, sutures and fibre testing.
Mass is not force. A kilogram is a mass; a kilogram-force is the weight of that mass at standard gravity, 9.80665 N. Bathroom scales blur the distinction because they are calibrated for Earth; engineering calculations cannot. The tables underneath give both a plain step-by-step lookup and a list of real quantities expressed in grams-force, so you can sanity-check whether your answer is a plausible size.
The formula
tonnes-force- The amount you are converting, in tonnes-force
1,000,000- The exact number of grams-force in one tonne-force
grams-force- The converted result
How it works, step by step
- Enter the value in tonnes-force.
- It is multiplied by 1,000,000, the exact factor between the two units.
- The answer is shown in grams-force, with the reverse conversion beneath it.
- Check the reference table if you want a figure of comparable size.
Worked examples
Lifting a bag of sugar: 0.001 tf in grams-force
At 0.001 tf (lifting a bag of sugar), the same quantity in grams-force is 0.001 × 1e+06 = 1000 gf. One tonne-force is 1e+06 grams-force, so the numbers grow as expected.
A climbing rope’s rated load: 2.24 tf in grams-force
A climbing rope’s rated load comes to about 2.24 tf. Multiplying by the factor: 2.24 × 1e+06 = 2.24e+06 gf. Dividing the answer back by 1e+06 returns the figure you started with, which is the quickest way to check you have the factor the right way up.
How to read your score
Frequently asked questions
How many grams-force are in one tonne-force?
Exactly 1,000,000. Every figure on this page is that one number multiplied by your input, so the only rounding is at the display step.
What is the formula to convert tonnes-force to grams-force?
grams-force = tonnes-force × 1,000,000. Reversed, tonnes-force = grams-force ÷ 1,000,000, which is the same as multiplying by 1e-06.
Which is the bigger unit, the tonne-force or the gram-force?
The tonne-force. One tonne-force equals 1e+06 grams-force.
What does this quantity actually measure?
Both units measure force. That is why a single factor is enough: there is no temperature offset and no material property involved, unlike conversions that cross between different quantities.
What is a tonne-force?
The force of gravity on one metric tonne, used in press and crane ratings.
What is a gram-force?
The weight of one gram at standard gravity, used for keyboard switches, sutures and fibre testing.
Why does my answer differ from another converter?
Almost always because the other tool rounded the factor before multiplying. This page keeps full double precision through the calculation and rounds only for display, and it prints the factor it used so you can see where any difference came from.
Tonnes-Force to grams-force reference tables
| Tonnes-Force | Grams-Force |
|---|---|
| 0.5 tf | 500,000 gf |
| 1 tf | 1e+06 gf |
| 2 tf | 2e+06 gf |
| 3 tf | 3e+06 gf |
| 5 tf | 5e+06 gf |
| 10 tf | 1e+07 gf |
| 20 tf | 2e+07 gf |
| 25 tf | 2.5e+07 gf |
| 50 tf | 5e+07 gf |
| 75 tf | 7.5e+07 gf |
| 100 tf | 1e+08 gf |
| 250 tf | 2.5e+08 gf |
| 500 tf | 5e+08 gf |
| 1000 tf | 1e+09 gf |
| 5000 tf | 5e+09 gf |
Exact factor: 1 tonne-force = 1,000,000 grams-force.
| Quantity | tf | gf |
|---|---|---|
| A sheet of paper’s weight | 4.997e-06 tf | 4.997 gf |
| Lifting a bag of sugar | 0.001 tf | 1000 gf |
| A firm handshake | 0.03059 tf | 3.059e+04 gf |
| An adult’s body weight | 0.07954 tf | 7.954e+04 gf |
| A climbing rope’s rated load | 2.243 tf | 2.243e+06 gf |
| A car’s braking force | 0.8158 tf | 8.158e+05 gf |
Published reference values, converted with the same factor this page uses.