Halveringstidskalkylator

Use the free online Halveringstidskalkylator tool. Fast, private and easy to use — runs entirely in your browser. Part of our Kemikalkylatorer collection.

Molaritetskalkylator

Solute mass (g) Molar mass (g/mol) Solution volume (L)

Find the molar concentration of a solution from solute mass, molar mass and volume.

Utspädningskalkylator

Stock concentration C1 Target concentration C2 Final volume V2

Use C1V1 = C2V2 to find how much stock solution and diluent a dilution needs.

pH-kalkylator

[H+] concentration (mol/L) or pH (leave [H+] blank)

Convert between hydrogen-ion concentration, pH and pOH in both directions.

Ideala gaslagen-kalkylator

Pressure P (atm) Volume V (L) — leave blank to solve Moles n Temperature T (K)

Solve PV = nRT for the missing variable using R = 0.082057 L·atm/mol·K.

Gram-till-mol-omvandlare

Molar mass (g/mol) Mass (g) or Moles (leave mass blank)

Convert between grams and moles of any substance using its molar mass.

Kombinerade gaslagen-kalkylator

Initial pressure P1 Initial volume V1 Initial temperature T1 (K) Final volume V2 (or leave blank) Final pressure P2 (or leave blank) Final temperature T2 (K)

Apply P1V1/T1 = P2V2/T2 to find the final pressure or volume of a gas.

Halveringstidskalkylator

Initial amount Half-life Elapsed time (same unit)

Find how much of a decaying substance remains after any elapsed time.

Lösningsprocentkalkylator

Solute mass (g) Solution volume (mL)

Express a solution strength as % w/v and grams per litre.

Frequently Asked Questions

Is the Halveringstidskalkylator free to use?

Yes. The Halveringstidskalkylator is completely free with no sign-up, no limits and no watermarks. You can use it as many times as you like.

Is the Halveringstidskalkylator safe and private?

Absolutely. The Halveringstidskalkylator runs entirely in your browser, so your data never leaves your device and nothing is uploaded to a server.

Do I need to install anything to use the Halveringstidskalkylator?

No installation is needed. The Halveringstidskalkylator works instantly online in any modern browser on desktop, tablet or mobile.

Does the Halveringstidskalkylator work on mobile phones?

Yes. The Halveringstidskalkylator is fully responsive and works smoothly on iPhone, Android and any other device.