One gram-force is exactly 980.665 dynes, so converting grams-force to dynes 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 weight of one gram at standard gravity, used for keyboard switches, sutures and fibre testing. The CGS unit of force, equal to 10 micronewtons.
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 dynes, so you can sanity-check whether your answer is a plausible size.
The formula
grams-force- The amount you are converting, in grams-force
980.665- The exact number of dynes in one gram-force
dynes- The converted result
How it works, step by step
- Enter the value in grams-force.
- It is multiplied by 980.665, the exact factor between the two units.
- The answer is shown in dynes, 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: 1000 gf in dynes
At 1000 gf (lifting a bag of sugar), the same quantity in dynes is 1000 × 980.665 = 980,665 dyn. One gram-force is 980.665 dynes, so the numbers grow as expected.
A sheet of paper’s weight: 5 gf in dynes
At 5 gf (a sheet of paper’s weight), the same quantity in dynes is 5 × 980.665 = 4903.32 dyn. One gram-force is 980.665 dynes, so the numbers grow as expected.
How to read your score
Frequently asked questions
How many dynes are in one gram-force?
Exactly 980.665. 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 grams-force to dynes?
dynes = grams-force × 980.665. Reversed, grams-force = dynes ÷ 980.665, which is the same as multiplying by 0.00101971621298.
Which is the bigger unit, the gram-force or the dyne?
The gram-force. One gram-force equals 980.665 dynes.
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 gram-force?
The weight of one gram at standard gravity, used for keyboard switches, sutures and fibre testing.
What is a dyne?
The CGS unit of force, equal to 10 micronewtons.
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.
Is there a quick way to do gf to dyn in my head?
Plenty of people do this in their head: multiply by 1000 instead of using the exact factor 980.665. At 100 that shortcut gives 100,000 dynes, off by 1934 dynes or about 1.97%. Fine for a rough estimate, not fine for anything you are cutting to size or dosing.
Grams-Force to dynes reference tables
| Grams-Force | Dynes |
|---|---|
| 0.5 gf | 490.332 dyn |
| 1 gf | 980.665 dyn |
| 2 gf | 1961.33 dyn |
| 3 gf | 2941.99 dyn |
| 5 gf | 4903.32 dyn |
| 10 gf | 9806.65 dyn |
| 20 gf | 19,613.3 dyn |
| 25 gf | 24,516.6 dyn |
| 50 gf | 49,033.2 dyn |
| 75 gf | 73,549.9 dyn |
| 100 gf | 98,066.5 dyn |
| 250 gf | 245,166 dyn |
| 500 gf | 490,332 dyn |
| 1000 gf | 980,665 dyn |
| 5000 gf | 4.90332e+06 dyn |
Exact factor: 1 gram-force = 980.665 dynes.
| Quantity | gf | dyn |
|---|---|---|
| A sheet of paper’s weight | 4.997 gf | 4900 dyn |
| Lifting a bag of sugar | 1000 gf | 9.81e+05 dyn |
| A firm handshake | 3.059e+04 gf | 3e+07 dyn |
| An adult’s body weight | 7.954e+04 gf | 7.8e+07 dyn |
| A climbing rope’s rated load | 2.243e+06 gf | 2.2e+09 dyn |
| A car’s braking force | 8.158e+05 gf | 8e+08 dyn |
Published reference values, converted with the same factor this page uses.