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Filament Drying Calculator

Drying time and temperature for every 3D printing filament type

Drying Time

8h 0m

Temp

70°C / 158°F

Moisture

Very High

Drying Time

8h 0m

8 hours total

Temperature

70\u00B0C

Max Safe

80\u00B0C

Absorption

Very High

Details

Temperature70\u00B0C / 158\u00B0F
Energy Used0.8 kWh (~$0.13)

What You'll Need

Hatchbox PLA 3D Printer Filament 1.75mm 1kg Black

Hatchbox PLA 3D Printer Filament 1.75mm 1kg Black

$20-$284.7
View on Amazon
SUNLU Filament Dryer Box S2 with Fan 360 Heating

SUNLU Filament Dryer Box S2 with Fan 360 Heating

$40-$554.4
View on Amazon
Creality Ender 3 S1 Pro 3D Printer Direct Drive

Creality Ender 3 S1 Pro 3D Printer Direct Drive

$280-$3804.4
View on Amazon
Hatchbox PLA 3D Printer Filament 1.75mm 1kg Black

Hatchbox PLA 3D Printer Filament 1.75mm 1kg Black

$20-$284.7
View on Amazon
SUNLU Filament Dryer Box S2 with Fan 360 Heating

SUNLU Filament Dryer Box S2 with Fan 360 Heating

$40-$554.4
View on Amazon
Creality Ender 3 S1 Pro 3D Printer Direct Drive

Creality Ender 3 S1 Pro 3D Printer Direct Drive

$280-$3804.4
View on Amazon

As an Amazon Associate, we earn from qualifying purchases.

Example Calculations

1Nylon in moderate humidity, dedicated dryer

Inputs

MaterialNylon (PA)
HumidityModerate (30-60%)

Result

Drying Time8h 0m
Temperature70°C / 158°F

8h base × 1.0 humidity × 1.0 dryer = 8 hours at 70°C.

2PETG in high humidity, food dehydrator

Inputs

MaterialPETG
HumidityHigh (60-80%)

Result

Drying Time6h 54m
Temperature6500B0C / 14900B0F

4h base * 1.5 humidity * 1.15 dehydrator = 6.9 hours at 6500B0C.

Frequently Asked Questions

Q

How long should I dry my 3D printer filament?

PLA: 4 hours at 45C. ABS/PETG: 4 hours at 65C. Nylon: 8 hours at 70C. TPU: 5 hours at 50C. Times increase with higher ambient humidity.

  • PLA: 4h at 45°C (113°F)
  • ABS/PETG: 4h at 65°C (149°F)
  • Nylon: 8h at 70°C (158°F)
  • TPU: 5h at 50°C (122°F)
MaterialTemp °CTimeHygroscopic
PLA45°C4hLow
ABS65°C4hModerate
Nylon70°C8hVery High
TPU50°C5hHigh
Q

How do I know if my filament is wet?

Wet filament pops, crackles, and hisses during printing. You may see stringing, bubbles in the extrusion, poor layer adhesion, and a rough surface finish.

  • Popping/crackling sound while printing
  • Excessive stringing between parts
  • Bubbles visible in extruded lines
  • Poor layer adhesion and rough surface
Q

Can I use a food dehydrator to dry filament?

Yes. Food dehydrators work well but are 15% slower than dedicated filament dryers due to less precise temperature control. Set to the same temperature as recommended for the material.

  • Food dehydrator: works, 15% slower
  • Dedicated dryer: best results
  • Oven: risky (temp spikes can melt filament)
  • Desiccant box: very slow, 3x longer
Q

Does PLA need to be dried?

PLA is the least hygroscopic common filament but still absorbs moisture over weeks/months. If stored unsealed for over a month in humid conditions, drying for 4 hours at 45C will improve print quality.

  • PLA: low absorption, still benefits from drying
  • Sealed with desiccant: months of storage
  • Open air: dry after 2-4 weeks
  • Always dry before printing critical parts

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This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.

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