Charities across the Bath area have been spending this week thanking the people who make them tick.
The charity Age UK B&NES has calculated that its 150-strong army of volunteers gives about £100,000 of time each year, while Dorothy House puts the value of its help at 11 times that figure.
They have worked out the totals to mark the national annual campaign Volunteers' Week.
Age UK chief executive Janet Dabbs said its volunteers gave about 11,000 hours a year.
Ms Dabbs said: "Their work makes a big difference to the lives of so many older people and their carers, and I'd like to thank each and every one of them for getting involved."
Age UK B&NES supports about 12,000 older people, their families and carers every year
Ms Dabbs added: "There are all sorts of ways of getting involved, from providing practical help like shopping through to our befriending service. I'd encourage anyone considering it to just get in touch with us for an informal chat."
Dorothy House Hospice has 939 volunteers and says it could not function without their help.
A spokeswoman said: "Volunteers allow us to deliver additional services worth a staggering £1.1 million caring for patients and their families."
Bath charity First Steps, which runs family centres in Twerton and Oldfield Park, held an event on Monday to thank existing volunteers and recruit new ones.
A spokeswoman said: "Volunteering is incredibly rewarding and can transform a person's life.
"Two of our volunteers went on to secure jobs with us as a direct result of their volunteer experience."