| Property |
Conversions |
| Pressure |
1Pa=106m Pa=10-5 ×10-3psi » 10-5 atm |
| Length |
1m=1.094yd=39.4inch |
| Weight |
1kg=2.205lb |
| Unit to convert from |
Unit to convert to |
Conversion Formula |
| X [°C] |
Y [°F] |
Y=1.8 • X + 32 |
| X [dB re 1 μPa] |
Y [W/m2] |
Y=0.667 • 10-18 W/m2 • 10(X/10) |
| X [W/m2] |
Y [Pa] rms |
Y=(X • 1000kg/m3 • 1500m/s)1/2 |
| X [Decibel] |
Y [Nepers] |
X=8.686 • Y |
| Word |
Symbol |
Factor |
dB |
| tera |
T |
10 12 |
+120 |
| giga |
G |
10 9 |
+90 |
| mega |
M |
10 6 |
+60 |
| kilo |
k |
10 3 |
+30 |
| hekto |
h |
10 2 |
+20 |
| deca |
da |
10 1 |
+10 |
| - |
- |
10 0 |
0 |
| deci |
d |
10 -1 |
-10 |
| centi |
c |
10 -2 |
-20 |
| milli |
m |
10 -3 |
-30 |
| mikro |
μ |
10 -6 |
-60 |
| nano |
n |
10 -9 |
-90 |
| pico |
p |
10 -12 |
-120 |
| Property |
SI/unit |
Symbols |
Comment |
| Length |
Meter |
1m |
- |
| Area |
Square meter |
1m2 |
- |
| Volume |
Cubic
meter |
1m3 |
- |
| Weight |
Kilograms |
1kg |
- |
| Time |
Seconds |
1s |
- |
| Temperature |
Celsius |
1°C |
or Kelvin |
| Energy |
Joule |
1J |
- |
| Charge |
Coulomb |
1C |
- |
| Voltage |
Volts |
1V |
- |
| Impedance |
Ohm |
1Ω |
Electrical |
| Impedance |
Rayl |
1Rayl |
Acoustical |
| Current |
Ampere |
1A |
1C/s |
| Conductance |
Siemens |
1S |
1Ω-1 |
| Power |
Watt |
1W |
1J/s |
| Force |
Newton |
1N |
1kg . m/s2 |
| Pressure |
Pascal |
1Pa |
1N/m2 |
See Essential acoustic formulae
