Units Currencies
Constants
Units Home
Unit Conversion
List Units
List Categories
Currencies
Convert Units
SI System
Base Units
Derived Units
Prefixes
Numbers
Constants
Base-N
Fractions
Time / Decimal
Resources
Bibliography
Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

more free publications

Materials

Design

Processes

Units

Formulas

Math
 
calorie (4°C)
Symbol:  cal4 
Category:  Energy 
SI Equivalent:  4.2045 J
Dimension:  ML2T-2 
 
Notes
Heat unit representing the energy needed to raise the temperature of 1 gram of air-free water from 3.5°C to 4.5°C at the constant pressure of 1 atm.
Convert     cal4  
1 cal4 =
Energy
  Symbol Unit Name
9.64391×1017  Eh  a.u. of energy 
6.8701×10-10  bboe  barrel oil equivalent 
6.8701×10-10  bboe  bboe (barrel oil equivalent) 
2.62424×1010  BeV  BeV (billion eV) 
3.98508×10-3  Btu (ISO)  British thermal unit (ISO) 
3.9851×10-3  Btu (IT)  British thermal unit (IT) 
3.98202×10-3  Btu (mean)  British thermal unit (mean) 
3.98777×10-3  Btu (therm.)  British thermal unit (thermochemical) 
1.00466  cal15  calorie (15°C) 
1.00586×10-3  Cal, kcal  Calorie (diet kilocalorie) 
1.00424  cal (IT)  calorie (IT) (International Steam Table) 
1.00346  calmean  calorie (mean) 
1.0049  cal (therm.)  calorie (thermochemical) 
2.21385×10-3  Chu  Celsius-heat unit 
4.2045  C-V  coulomb volt 
41.4952  cm3-atm  cubic centimeter-atm 
1.46539×10-3  ft3-atm  cubic foot atm 
2.62424×1019  eV  electronvolt 
4.2045×107  erg  erg 
3.10108  ft-lbf  foot-pound force 
99.7743  ft-pdl  foot-poundal 
2.62424×1010  GeV  gigaelectronvolt 
1.00424  gram-cal  gram calorie 
9.64391×1017  Eh  hartree 
1.5662×10-6  Hp-h  horsepower (550ft-lbf/s)-hour 
37.213  in-lbf  inch pound force 
4.2045  J  joule 
1.00454×10-3  kcal15  kilocalorie (15°C) 
1×10-3  kcal4  kilocalorie (4°C) 
2.62424×1016  keV  kiloelectronvolt 
4.2045×10-3  kJ  kilojoule 
1.00586×10-12  kt (TNT)  kiloton TNT equivalent 
1.16792×10-6  kWh  kilowatt-hour 
2.62424×1013  MeV  megaelectronvolt 
4.2045×10-6  MJ  megajoule 
1.00586×10-15  Mt (TNT)  megaton TNT equivalent 
4.2045  N-m  newton meter 
3.98531×10-21    Q unit 
3.9851×10-18  quad  quad 
3.9851×10-18  quad  quadrillion 
1.92878×1018  Ry  rydberg 
1.43547×10-10  tce  tce (tonne coal equivalent) 
3.9851×10-8    therm (EEG) 
3.98605×10-8    therm (US) 
1.00454×10-6  th15 °C  thermie (15°C) 
1.00418×10-10  toe  toe (tonne oil equivalent) 
1.00586×10-9  ton (TNT)  ton TNT equivalent 
1.43547×10-10  tce  tonne coal equivalent 
1.00418×10-10  toe  tonne oil equivalent 
1.16792×10-3  Wh  watt hour 
Moment, Torque
  Symbol Unit Name
4.2045×107  dyn-cm  dyne-centimeter 
4.2874×104  gf-cm  gram force-centimeter 
0.42874  kgf-m  kilogram force-meter 
420.45  N-cm  newton-centimeter 
4.2045  N-m  newton-meter 
595.407  ozf-in  ounce force-inch 
3.10108  lbf-ft  pound force-foot 
37.213  lbf-in  pound force-inch 
99.7743  pdl-ft  poundal-foot 
Glossary
FREE Publications
Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

more publications