Converters
Energy converters
28 tools
Joules, calories, watt-hours, and electronvolts.
- BTU to Joules conversion Convert BTU (IT) to joules (J). Factor: 1 BTU ≈ 1055.05585 J. Formula, HVAC examples, and chart. Switch BTU → J or J → BTU. Runs locally in your browser.
- BTU to Kilojoules conversion Convert BTU (IT) to kilojoules (kJ). Factor: 1 BTU ≈ 1.05505585 kJ. Formula, examples, and chart. Switch BTU → kJ or kJ → BTU. Works offline-ready.
- BTU to kWh conversion Convert BTU (IT) to kilowatt-hours (kWh). Factor: 1 BTU ≈ 0.000293071069 kWh. Formula, HVAC examples, chart. Switch BTU → kWh or kWh → BTU. Try it free.
- Calories to Joules conversion Convert calories (cal) to joules (J). Thermochemical: 1 cal ≈ 4.184 J. Clarifies food Calorie vs small calorie; formula and chart. Fast and free.
- Calories to kcal conversion Calories to kcal conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Runs locally in your browser.
- Calories to Kilojoules (kJ) conversion Convert calories (cal) to kilojoules (kJ). Thermochemical: 1 cal ≈ 0.004184 kJ. Clarifies food Calorie vs small calorie. Runs locally in your browser.
- Electron-volts to joules conversion Convert electron-volts (eV) to joules (J). Exact CODATA: 1 eV = 1.602176634×10⁻¹⁹ J. Free online tool — no sign-up. Runs locally in your browser.
- eV to GeV conversion Convert electron-volts (eV) to gigaelectron-volts (GeV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- eV to keV conversion Convert electron-volts (eV) to kiloelectron-volts (keV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- eV to MeV conversion Convert electron-volts (eV) to megaelectron-volts (MeV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- GeV to eV conversion Convert gigaelectron-volts (GeV) to electron-volts (eV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Joules to BTU conversion Convert joules (J) to BTU (IT). Factor: 1 BTU ≈ 1055.05585 J. Formula, examples, and chart. Free online tool — no sign-up. Runs locally in your browser.
- Joules to calories conversion Convert joules (J) to calories (cal). Thermochemical: 1 cal ≈ 4.184 J. Clarifies food Calorie vs small calorie; formula and chart. Fast and free.
- Joules to electron-volts conversion Convert joules (J) to electron-volts (eV). Exact: 1 eV = 1.602176634×10⁻¹⁹ J. Switch J → eV or eV → J. Runs locally in your browser. Try it free.
- Joules to kilocalories conversion Convert joules (J) to kilocalories (kcal). Factor: 1 kcal ≈ 4184 J. Clarifies food Calorie; formula and chart. Switch J → kcal or kcal → J. Try it free.
- Joules to Kilojoules conversion Joules to Kilojoules conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Joules to kWh conversion Convert joules (J) to kilowatt-hours (kWh). Exact: 1 kWh = 3,600,000 J. Formula, examples, chart. Switch J → kWh or kWh → J. Runs locally in your browser.
- kcal to calories conversion Convert kilocalories (kcal) to calories (cal). Exact: 1 kcal = 1000 cal. Clarifies food Calorie vs small calorie. Switch kcal → cal or cal → kcal.
- kcal to kilojoules conversion Convert kilocalories (kcal) to kilojoules (kJ). Exact thermochemical: 1 kcal = 4.184 kJ. Free online tool — no sign-up. Runs locally in your browser.
- keV to eV conversion Convert kiloelectron-volts (keV) to electron-volts (eV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.
- Kilocalories to joules conversion Kilocalories to joules conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilojoules to BTU conversion Convert kilojoules (kJ) to BTU (IT). Factor: 1 kJ ≈ 0.947817 BTU. Formula, examples, and chart. Switch kJ → BTU or BTU → kJ. Runs locally in your browser.
- Kilojoules to Calories conversion Kilojoules to Calories conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilojoules to Joules conversion Kilojoules to Joules conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- Kilojoules to kilocalories conversion Kilojoules to kilocalories conversion. Exact conversion factors, worked examples, and privacy-first browser calculation on CalculatorX. Try it free.
- kWh to BTU conversion Convert kilowatt-hours (kWh) to BTU (IT). Factor: 1 kWh ≈ 3412.141642 BTU. Formula, examples, chart. Switch kWh → BTU or BTU → kWh. Fast and free.
- kWh to Joules conversion Convert kilowatt-hours (kWh) to joules (J). Exact: 1 kWh = 3,600,000 J. Formula, examples, chart. Switch kWh → J or J → kWh. Runs locally in your browser.
- MeV to eV conversion Convert megaelectron-volts (MeV) to electron-volts (eV). Free online tool — no sign-up. Clear formulas and worked examples. Runs locally in your browser.